71569240

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{21557}}^1$

素因数の和:21651

約数の個数: 32

約数和(自身を含む): 162978480

約数和(自身を除く): 91409240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 21557, 43114, 86228, 107785, 172456, 215570, 431140, 862280, 1789231, 3578462, 7156924, 8946155, 14313848, 17892310, 35784620, 71569240]

約数ペア:

[(1, 71569240), (2, 35784620), (4, 17892310), (5, 14313848), (8, 8946155), (10, 7156924), (20, 3578462), (40, 1789231), (83, 862280), (166, 431140), (332, 215570), (415, 172456), (664, 107785), (830, 86228), (1660, 43114), (3320, 21557)]