77500840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 179625600

約数和(自身を除く): 102124760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 139, 212, 263, 265, 278, 424, 526, 530, 556, 695, 1052, 1060, 1112, 1315, 1390, 2104, 2120, 2630, 2780, 5260, 5560, 7367, 10520, 13939, 14734, 27878, 29468, 36557, 36835, 55756, 58936, 69695, 73114, 73670, 111512, 139390, 146228, 147340, 182785, 278780, 292456, 294680, 365570, 557560, 731140, 1462280, 1937521, 3875042, 7750084, 9687605, 15500168, 19375210, 38750420, 77500840]

約数ペア:

[(1, 77500840), (2, 38750420), (4, 19375210), (5, 15500168), (8, 9687605), (10, 7750084), (20, 3875042), (40, 1937521), (53, 1462280), (106, 731140), (139, 557560), (212, 365570), (263, 294680), (265, 292456), (278, 278780), (424, 182785), (526, 147340), (530, 146228), (556, 139390), (695, 111512), (1052, 73670), (1060, 73114), (1112, 69695), (1315, 58936), (1390, 55756), (2104, 36835), (2120, 36557), (2630, 29468), (2780, 27878), (5260, 14734), (5560, 13939), (7367, 10520)]