217236840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2539}}^1$

素因数の和:2607

約数の個数: 128

約数和(自身を含む): 702259200

約数和(自身を除く): 485022360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 31, 40, 46, 60, 62, 69, 92, 93, 115, 120, 124, 138, 155, 184, 186, 230, 248, 276, 310, 345, 372, 460, 465, 552, 620, 690, 713, 744, 920, 930, 1240, 1380, 1426, 1860, 2139, 2539, 2760, 2852, 3565, 3720, 4278, 5078, 5704, 7130, 7617, 8556, 10156, 10695, 12695, 14260, 15234, 17112, 20312, 21390, 25390, 28520, 30468, 38085, 42780, 50780, 58397, 60936, 76170, 78709, 85560, 101560, 116794, 152340, 157418, 175191, 233588, 236127, 291985, 304680, 314836, 350382, 393545, 467176, 472254, 583970, 629672, 700764, 787090, 875955, 944508, 1167940, 1180635, 1401528, 1574180, 1751910, 1810307, 1889016, 2335880, 2361270, 3148360, 3503820, 3620614, 4722540, 5430921, 7007640, 7241228, 9051535, 9445080, 10861842, 14482456, 18103070, 21723684, 27154605, 36206140, 43447368, 54309210, 72412280, 108618420, 217236840]

約数ペア:

[(1, 217236840), (2, 108618420), (3, 72412280), (4, 54309210), (5, 43447368), (6, 36206140), (8, 27154605), (10, 21723684), (12, 18103070), (15, 14482456), (20, 10861842), (23, 9445080), (24, 9051535), (30, 7241228), (31, 7007640), (40, 5430921), (46, 4722540), (60, 3620614), (62, 3503820), (69, 3148360), (92, 2361270), (93, 2335880), (115, 1889016), (120, 1810307), (124, 1751910), (138, 1574180), (155, 1401528), (184, 1180635), (186, 1167940), (230, 944508), (248, 875955), (276, 787090), (310, 700764), (345, 629672), (372, 583970), (460, 472254), (465, 467176), (552, 393545), (620, 350382), (690, 314836), (713, 304680), (744, 291985), (920, 236127), (930, 233588), (1240, 175191), (1380, 157418), (1426, 152340), (1860, 116794), (2139, 101560), (2539, 85560), (2760, 78709), (2852, 76170), (3565, 60936), (3720, 58397), (4278, 50780), (5078, 42780), (5704, 38085), (7130, 30468), (7617, 28520), (8556, 25390), (10156, 21390), (10695, 20312), (12695, 17112), (14260, 15234)]