21158280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:181

約数の個数: 256

約数和(自身を含む): 83462400

約数和(自身を除く): 62304120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 18, 20, 22, 24, 26, 27, 30, 33, 36, 39, 40, 44, 45, 52, 54, 55, 60, 65, 66, 72, 78, 88, 90, 99, 104, 108, 110, 117, 120, 130, 132, 135, 137, 143, 156, 165, 180, 195, 198, 216, 220, 234, 260, 264, 270, 274, 286, 297, 312, 330, 351, 360, 390, 396, 411, 429, 440, 468, 495, 520, 540, 548, 572, 585, 594, 660, 685, 702, 715, 780, 792, 822, 858, 936, 990, 1080, 1096, 1144, 1170, 1188, 1233, 1287, 1320, 1370, 1404, 1430, 1485, 1507, 1560, 1644, 1716, 1755, 1781, 1980, 2055, 2145, 2340, 2376, 2466, 2574, 2740, 2808, 2860, 2970, 3014, 3288, 3432, 3510, 3562, 3699, 3861, 3960, 4110, 4290, 4521, 4680, 4932, 5148, 5343, 5480, 5720, 5940, 6028, 6165, 6435, 7020, 7124, 7398, 7535, 7722, 8220, 8580, 8905, 9042, 9864, 10296, 10686, 11880, 12056, 12330, 12870, 13563, 14040, 14248, 14796, 15070, 15444, 16029, 16440, 17160, 17810, 18084, 18495, 19305, 19591, 21372, 22605, 24660, 25740, 26715, 27126, 29592, 30140, 30888, 32058, 35620, 36168, 36990, 38610, 39182, 40689, 42744, 45210, 48087, 49320, 51480, 53430, 54252, 58773, 60280, 64116, 67815, 71240, 73980, 77220, 78364, 80145, 81378, 90420, 96174, 97955, 106860, 108504, 117546, 128232, 135630, 147960, 154440, 156728, 160290, 162756, 176319, 180840, 192348, 195910, 203445, 213720, 235092, 240435, 271260, 293865, 320580, 325512, 352638, 384696, 391820, 406890, 470184, 480870, 528957, 542520, 587730, 641160, 705276, 783640, 813780, 881595, 961740, 1057914, 1175460, 1410552, 1627560, 1763190, 1923480, 2115828, 2350920, 2644785, 3526380, 4231656, 5289570, 7052760, 10579140, 21158280]

約数ペア:

[(1, 21158280), (2, 10579140), (3, 7052760), (4, 5289570), (5, 4231656), (6, 3526380), (8, 2644785), (9, 2350920), (10, 2115828), (11, 1923480), (12, 1763190), (13, 1627560), (15, 1410552), (18, 1175460), (20, 1057914), (22, 961740), (24, 881595), (26, 813780), (27, 783640), (30, 705276), (33, 641160), (36, 587730), (39, 542520), (40, 528957), (44, 480870), (45, 470184), (52, 406890), (54, 391820), (55, 384696), (60, 352638), (65, 325512), (66, 320580), (72, 293865), (78, 271260), (88, 240435), (90, 235092), (99, 213720), (104, 203445), (108, 195910), (110, 192348), (117, 180840), (120, 176319), (130, 162756), (132, 160290), (135, 156728), (137, 154440), (143, 147960), (156, 135630), (165, 128232), (180, 117546), (195, 108504), (198, 106860), (216, 97955), (220, 96174), (234, 90420), (260, 81378), (264, 80145), (270, 78364), (274, 77220), (286, 73980), (297, 71240), (312, 67815), (330, 64116), (351, 60280), (360, 58773), (390, 54252), (396, 53430), (411, 51480), (429, 49320), (440, 48087), (468, 45210), (495, 42744), (520, 40689), (540, 39182), (548, 38610), (572, 36990), (585, 36168), (594, 35620), (660, 32058), (685, 30888), (702, 30140), (715, 29592), (780, 27126), (792, 26715), (822, 25740), (858, 24660), (936, 22605), (990, 21372), (1080, 19591), (1096, 19305), (1144, 18495), (1170, 18084), (1188, 17810), (1233, 17160), (1287, 16440), (1320, 16029), (1370, 15444), (1404, 15070), (1430, 14796), (1485, 14248), (1507, 14040), (1560, 13563), (1644, 12870), (1716, 12330), (1755, 12056), (1781, 11880), (1980, 10686), (2055, 10296), (2145, 9864), (2340, 9042), (2376, 8905), (2466, 8580), (2574, 8220), (2740, 7722), (2808, 7535), (2860, 7398), (2970, 7124), (3014, 7020), (3288, 6435), (3432, 6165), (3510, 6028), (3562, 5940), (3699, 5720), (3861, 5480), (3960, 5343), (4110, 5148), (4290, 4932), (4521, 4680)]