858605420

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{203461}}^1$

素因数の和:203681

約数の個数: 24

約数和(自身を含む): 1811625648

約数和(自身を除く): 953020228

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 203461, 406922, 813844, 1017305, 2034610, 4069220, 42930271, 85860542, 171721084, 214651355, 429302710, 858605420]

約数ペア:

[(1, 858605420), (2, 429302710), (4, 214651355), (5, 171721084), (10, 85860542), (20, 42930271), (211, 4069220), (422, 2034610), (844, 1017305), (1055, 813844), (2110, 406922), (4220, 203461)]