261635560

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{739}}^1$

素因数の和:970

約数の個数: 64

約数和(自身を含む): 604195200

約数和(自身を除く): 342559640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 167, 212, 265, 334, 424, 530, 668, 739, 835, 1060, 1336, 1478, 1670, 2120, 2956, 3340, 3695, 5912, 6680, 7390, 8851, 14780, 17702, 29560, 35404, 39167, 44255, 70808, 78334, 88510, 123413, 156668, 177020, 195835, 246826, 313336, 354040, 391670, 493652, 617065, 783340, 987304, 1234130, 1566680, 2468260, 4936520, 6540889, 13081778, 26163556, 32704445, 52327112, 65408890, 130817780, 261635560]

約数ペア:

[(1, 261635560), (2, 130817780), (4, 65408890), (5, 52327112), (8, 32704445), (10, 26163556), (20, 13081778), (40, 6540889), (53, 4936520), (106, 2468260), (167, 1566680), (212, 1234130), (265, 987304), (334, 783340), (424, 617065), (530, 493652), (668, 391670), (739, 354040), (835, 313336), (1060, 246826), (1336, 195835), (1478, 177020), (1670, 156668), (2120, 123413), (2956, 88510), (3340, 78334), (3695, 70808), (5912, 44255), (6680, 39167), (7390, 35404), (8851, 29560), (14780, 17702)]