180079820

素因数分解:

$2^2\times 5^1\times {\mathrm{1471}}^1\times {\mathrm{6121}}^1$

素因数の和:7601

約数の個数: 24

約数和(自身を含む): 378486528

約数和(自身を除く): 198406708

約数列:

[1, 2, 4, 5, 10, 20, 1471, 2942, 5884, 6121, 7355, 12242, 14710, 24484, 29420, 30605, 61210, 122420, 9003991, 18007982, 36015964, 45019955, 90039910, 180079820]

約数ペア:

[(1, 180079820), (2, 90039910), (4, 45019955), (5, 36015964), (10, 18007982), (20, 9003991), (1471, 122420), (2942, 61210), (5884, 30605), (6121, 29420), (7355, 24484), (12242, 14710)]