205122840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131489}}^1$

素因数の和:131516

約数の個数: 64

約数和(自身を含む): 662709600

約数和(自身を除く): 457586760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 131489, 262978, 394467, 525956, 657445, 788934, 1051912, 1314890, 1577868, 1709357, 1972335, 2629780, 3155736, 3418714, 3944670, 5128071, 5259560, 6837428, 7889340, 8546785, 10256142, 13674856, 15778680, 17093570, 20512284, 25640355, 34187140, 41024568, 51280710, 68374280, 102561420, 205122840]

約数ペア:

[(1, 205122840), (2, 102561420), (3, 68374280), (4, 51280710), (5, 41024568), (6, 34187140), (8, 25640355), (10, 20512284), (12, 17093570), (13, 15778680), (15, 13674856), (20, 10256142), (24, 8546785), (26, 7889340), (30, 6837428), (39, 5259560), (40, 5128071), (52, 3944670), (60, 3418714), (65, 3155736), (78, 2629780), (104, 1972335), (120, 1709357), (130, 1577868), (156, 1314890), (195, 1051912), (260, 788934), (312, 657445), (390, 525956), (520, 394467), (780, 262978), (1560, 131489)]