2155231640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{330557}}^1$

素因数の和:330731

約数の個数: 32

約数和(自身を含む): 4879036080

約数和(自身を除く): 2723804440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 330557, 661114, 1322228, 1652785, 2644456, 3305570, 6611140, 13222280, 53880791, 107761582, 215523164, 269403955, 431046328, 538807910, 1077615820, 2155231640]

約数ペア:

[(1, 2155231640), (2, 1077615820), (4, 538807910), (5, 431046328), (8, 269403955), (10, 215523164), (20, 107761582), (40, 53880791), (163, 13222280), (326, 6611140), (652, 3305570), (815, 2644456), (1304, 1652785), (1630, 1322228), (3260, 661114), (6520, 330557)]