21481200

素因数分解:

$2^4\times 3^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:63

約数の個数: 360

約数和(自身を含む): 88150608

約数和(自身を除く): 66669408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 25, 26, 27, 30, 34, 36, 39, 40, 45, 48, 50, 51, 52, 54, 60, 65, 68, 72, 75, 78, 80, 81, 85, 90, 100, 102, 104, 108, 117, 120, 130, 135, 136, 144, 150, 153, 156, 162, 170, 180, 195, 200, 204, 208, 216, 221, 225, 234, 240, 243, 255, 260, 270, 272, 300, 306, 312, 324, 325, 340, 351, 360, 390, 400, 405, 408, 425, 432, 442, 450, 459, 468, 486, 510, 520, 540, 585, 600, 612, 624, 648, 650, 663, 675, 680, 702, 720, 765, 780, 810, 816, 850, 884, 900, 918, 936, 972, 975, 1020, 1040, 1053, 1080, 1105, 1170, 1200, 1215, 1224, 1275, 1296, 1300, 1326, 1350, 1360, 1377, 1404, 1530, 1560, 1620, 1700, 1755, 1768, 1800, 1836, 1872, 1944, 1950, 1989, 2025, 2040, 2106, 2160, 2210, 2295, 2340, 2430, 2448, 2550, 2600, 2652, 2700, 2754, 2808, 2925, 3060, 3120, 3159, 3240, 3315, 3400, 3510, 3536, 3600, 3672, 3825, 3888, 3900, 3978, 4050, 4080, 4131, 4212, 4420, 4590, 4680, 4860, 5100, 5200, 5265, 5304, 5400, 5508, 5525, 5616, 5850, 5967, 6075, 6120, 6318, 6480, 6630, 6800, 6885, 7020, 7344, 7650, 7800, 7956, 8100, 8262, 8424, 8775, 8840, 9180, 9360, 9720, 9945, 10200, 10530, 10608, 10800, 11016, 11050, 11475, 11700, 11934, 12150, 12240, 12636, 13260, 13770, 14040, 15300, 15600, 15795, 15912, 16200, 16524, 16575, 16848, 17550, 17680, 17901, 18360, 19440, 19890, 20400, 20655, 21060, 22032, 22100, 22950, 23400, 23868, 24300, 25272, 26325, 26520, 27540, 28080, 29835, 30600, 31590, 31824, 32400, 33048, 33150, 34425, 35100, 35802, 36720, 39780, 41310, 42120, 44200, 45900, 46800, 47736, 48600, 49725, 50544, 52650, 53040, 53703, 55080, 59670, 61200, 63180, 66096, 66300, 68850, 70200, 71604, 78975, 79560, 82620, 84240, 88400, 89505, 91800, 95472, 97200, 99450, 103275, 105300, 107406, 110160, 119340, 126360, 132600, 137700, 140400, 143208, 149175, 157950, 159120, 165240, 179010, 183600, 198900, 206550, 210600, 214812, 238680, 252720, 265200, 268515, 275400, 286416, 298350, 315900, 330480, 358020, 397800, 413100, 421200, 429624, 447525, 477360, 537030, 550800, 596700, 631800, 716040, 795600, 826200, 859248, 895050, 1074060, 1193400, 1263600, 1342575, 1432080, 1652400, 1790100, 2148120, 2386800, 2685150, 3580200, 4296240, 5370300, 7160400, 10740600, 21481200]

約数ペア:

[(1, 21481200), (2, 10740600), (3, 7160400), (4, 5370300), (5, 4296240), (6, 3580200), (8, 2685150), (9, 2386800), (10, 2148120), (12, 1790100), (13, 1652400), (15, 1432080), (16, 1342575), (17, 1263600), (18, 1193400), (20, 1074060), (24, 895050), (25, 859248), (26, 826200), (27, 795600), (30, 716040), (34, 631800), (36, 596700), (39, 550800), (40, 537030), (45, 477360), (48, 447525), (50, 429624), (51, 421200), (52, 413100), (54, 397800), (60, 358020), (65, 330480), (68, 315900), (72, 298350), (75, 286416), (78, 275400), (80, 268515), (81, 265200), (85, 252720), (90, 238680), (100, 214812), (102, 210600), (104, 206550), (108, 198900), (117, 183600), (120, 179010), (130, 165240), (135, 159120), (136, 157950), (144, 149175), (150, 143208), (153, 140400), (156, 137700), (162, 132600), (170, 126360), (180, 119340), (195, 110160), (200, 107406), (204, 105300), (208, 103275), (216, 99450), (221, 97200), (225, 95472), (234, 91800), (240, 89505), (243, 88400), (255, 84240), (260, 82620), (270, 79560), (272, 78975), (300, 71604), (306, 70200), (312, 68850), (324, 66300), (325, 66096), (340, 63180), (351, 61200), (360, 59670), (390, 55080), (400, 53703), (405, 53040), (408, 52650), (425, 50544), (432, 49725), (442, 48600), (450, 47736), (459, 46800), (468, 45900), (486, 44200), (510, 42120), (520, 41310), (540, 39780), (585, 36720), (600, 35802), (612, 35100), (624, 34425), (648, 33150), (650, 33048), (663, 32400), (675, 31824), (680, 31590), (702, 30600), (720, 29835), (765, 28080), (780, 27540), (810, 26520), (816, 26325), (850, 25272), (884, 24300), (900, 23868), (918, 23400), (936, 22950), (972, 22100), (975, 22032), (1020, 21060), (1040, 20655), (1053, 20400), (1080, 19890), (1105, 19440), (1170, 18360), (1200, 17901), (1215, 17680), (1224, 17550), (1275, 16848), (1296, 16575), (1300, 16524), (1326, 16200), (1350, 15912), (1360, 15795), (1377, 15600), (1404, 15300), (1530, 14040), (1560, 13770), (1620, 13260), (1700, 12636), (1755, 12240), (1768, 12150), (1800, 11934), (1836, 11700), (1872, 11475), (1944, 11050), (1950, 11016), (1989, 10800), (2025, 10608), (2040, 10530), (2106, 10200), (2160, 9945), (2210, 9720), (2295, 9360), (2340, 9180), (2430, 8840), (2448, 8775), (2550, 8424), (2600, 8262), (2652, 8100), (2700, 7956), (2754, 7800), (2808, 7650), (2925, 7344), (3060, 7020), (3120, 6885), (3159, 6800), (3240, 6630), (3315, 6480), (3400, 6318), (3510, 6120), (3536, 6075), (3600, 5967), (3672, 5850), (3825, 5616), (3888, 5525), (3900, 5508), (3978, 5400), (4050, 5304), (4080, 5265), (4131, 5200), (4212, 5100), (4420, 4860), (4590, 4680)]