21568697680

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{32401}}^1$

素因数の和:32624

約数の個数: 80

約数和(自身を含む): 51420418704

約数和(自身を除く): 29851721024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 157, 212, 265, 314, 424, 530, 628, 785, 848, 1060, 1256, 1570, 2120, 2512, 3140, 4240, 6280, 8321, 12560, 16642, 32401, 33284, 41605, 64802, 66568, 83210, 129604, 133136, 162005, 166420, 259208, 324010, 332840, 518416, 648020, 665680, 1296040, 1717253, 2592080, 3434506, 5086957, 6869012, 8586265, 10173914, 13738024, 17172530, 20347828, 25434785, 27476048, 34345060, 40695656, 50869570, 68690120, 81391312, 101739140, 137380240, 203478280, 269608721, 406956560, 539217442, 1078434884, 1348043605, 2156869768, 2696087210, 4313739536, 5392174420, 10784348840, 21568697680]

約数ペア:

[(1, 21568697680), (2, 10784348840), (4, 5392174420), (5, 4313739536), (8, 2696087210), (10, 2156869768), (16, 1348043605), (20, 1078434884), (40, 539217442), (53, 406956560), (80, 269608721), (106, 203478280), (157, 137380240), (212, 101739140), (265, 81391312), (314, 68690120), (424, 50869570), (530, 40695656), (628, 34345060), (785, 27476048), (848, 25434785), (1060, 20347828), (1256, 17172530), (1570, 13738024), (2120, 10173914), (2512, 8586265), (3140, 6869012), (4240, 5086957), (6280, 3434506), (8321, 2592080), (12560, 1717253), (16642, 1296040), (32401, 665680), (33284, 648020), (41605, 518416), (64802, 332840), (66568, 324010), (83210, 259208), (129604, 166420), (133136, 162005)]