21217680

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:99

約数の個数: 320

約数和(自身を含む): 85708800

約数和(自身を除く): 64491120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 19, 20, 22, 24, 27, 30, 33, 36, 38, 40, 44, 45, 47, 48, 54, 55, 57, 60, 66, 72, 76, 80, 88, 90, 94, 95, 99, 108, 110, 114, 120, 132, 135, 141, 144, 152, 165, 171, 176, 180, 188, 190, 198, 209, 216, 220, 228, 235, 240, 264, 270, 282, 285, 297, 304, 330, 342, 360, 376, 380, 396, 418, 423, 432, 440, 456, 470, 495, 513, 517, 528, 540, 564, 570, 594, 627, 660, 684, 705, 720, 752, 760, 792, 836, 846, 855, 880, 893, 912, 940, 990, 1026, 1034, 1045, 1080, 1128, 1140, 1188, 1254, 1269, 1320, 1368, 1410, 1485, 1520, 1551, 1584, 1672, 1692, 1710, 1786, 1880, 1881, 1980, 2052, 2068, 2090, 2115, 2160, 2256, 2280, 2376, 2508, 2538, 2565, 2585, 2640, 2679, 2736, 2820, 2970, 3102, 3135, 3344, 3384, 3420, 3572, 3760, 3762, 3960, 4104, 4136, 4180, 4230, 4465, 4560, 4653, 4752, 5016, 5076, 5130, 5170, 5358, 5640, 5643, 5940, 6204, 6270, 6345, 6768, 6840, 7144, 7524, 7755, 7920, 8037, 8208, 8272, 8360, 8460, 8930, 9306, 9405, 9823, 10032, 10152, 10260, 10340, 10716, 11280, 11286, 11880, 12408, 12540, 12690, 13395, 13680, 13959, 14288, 15048, 15510, 16074, 16720, 16920, 17860, 18612, 18810, 19646, 20304, 20520, 20680, 21432, 22572, 23265, 23760, 24111, 24816, 25080, 25380, 26790, 27918, 28215, 29469, 30096, 31020, 32148, 33840, 35720, 37224, 37620, 39292, 40185, 41040, 41360, 42864, 45144, 46530, 48222, 49115, 50160, 50760, 53580, 55836, 56430, 58938, 62040, 64296, 69795, 71440, 74448, 75240, 78584, 80370, 88407, 90288, 93060, 96444, 98230, 101520, 107160, 111672, 112860, 117876, 120555, 124080, 128592, 139590, 147345, 150480, 157168, 160740, 176814, 186120, 192888, 196460, 214320, 223344, 225720, 235752, 241110, 265221, 279180, 294690, 321480, 353628, 372240, 385776, 392920, 442035, 451440, 471504, 482220, 530442, 558360, 589380, 642960, 707256, 785840, 884070, 964440, 1060884, 1116720, 1178760, 1326105, 1414512, 1768140, 1928880, 2121768, 2357520, 2652210, 3536280, 4243536, 5304420, 7072560, 10608840, 21217680]

約数ペア:

[(1, 21217680), (2, 10608840), (3, 7072560), (4, 5304420), (5, 4243536), (6, 3536280), (8, 2652210), (9, 2357520), (10, 2121768), (11, 1928880), (12, 1768140), (15, 1414512), (16, 1326105), (18, 1178760), (19, 1116720), (20, 1060884), (22, 964440), (24, 884070), (27, 785840), (30, 707256), (33, 642960), (36, 589380), (38, 558360), (40, 530442), (44, 482220), (45, 471504), (47, 451440), (48, 442035), (54, 392920), (55, 385776), (57, 372240), (60, 353628), (66, 321480), (72, 294690), (76, 279180), (80, 265221), (88, 241110), (90, 235752), (94, 225720), (95, 223344), (99, 214320), (108, 196460), (110, 192888), (114, 186120), (120, 176814), (132, 160740), (135, 157168), (141, 150480), (144, 147345), (152, 139590), (165, 128592), (171, 124080), (176, 120555), (180, 117876), (188, 112860), (190, 111672), (198, 107160), (209, 101520), (216, 98230), (220, 96444), (228, 93060), (235, 90288), (240, 88407), (264, 80370), (270, 78584), (282, 75240), (285, 74448), (297, 71440), (304, 69795), (330, 64296), (342, 62040), (360, 58938), (376, 56430), (380, 55836), (396, 53580), (418, 50760), (423, 50160), (432, 49115), (440, 48222), (456, 46530), (470, 45144), (495, 42864), (513, 41360), (517, 41040), (528, 40185), (540, 39292), (564, 37620), (570, 37224), (594, 35720), (627, 33840), (660, 32148), (684, 31020), (705, 30096), (720, 29469), (752, 28215), (760, 27918), (792, 26790), (836, 25380), (846, 25080), (855, 24816), (880, 24111), (893, 23760), (912, 23265), (940, 22572), (990, 21432), (1026, 20680), (1034, 20520), (1045, 20304), (1080, 19646), (1128, 18810), (1140, 18612), (1188, 17860), (1254, 16920), (1269, 16720), (1320, 16074), (1368, 15510), (1410, 15048), (1485, 14288), (1520, 13959), (1551, 13680), (1584, 13395), (1672, 12690), (1692, 12540), (1710, 12408), (1786, 11880), (1880, 11286), (1881, 11280), (1980, 10716), (2052, 10340), (2068, 10260), (2090, 10152), (2115, 10032), (2160, 9823), (2256, 9405), (2280, 9306), (2376, 8930), (2508, 8460), (2538, 8360), (2565, 8272), (2585, 8208), (2640, 8037), (2679, 7920), (2736, 7755), (2820, 7524), (2970, 7144), (3102, 6840), (3135, 6768), (3344, 6345), (3384, 6270), (3420, 6204), (3572, 5940), (3760, 5643), (3762, 5640), (3960, 5358), (4104, 5170), (4136, 5130), (4180, 5076), (4230, 5016), (4465, 4752), (4560, 4653)]