420702920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{956143}}^1$

素因数の和:956165

約数の個数: 32

約数和(自身を含む): 1032635520

約数和(自身を除く): 611932600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 956143, 1912286, 3824572, 4780715, 7649144, 9561430, 10517573, 19122860, 21035146, 38245720, 42070292, 52587865, 84140584, 105175730, 210351460, 420702920]

約数ペア:

[(1, 420702920), (2, 210351460), (4, 105175730), (5, 84140584), (8, 52587865), (10, 42070292), (11, 38245720), (20, 21035146), (22, 19122860), (40, 10517573), (44, 9561430), (55, 7649144), (88, 4780715), (110, 3824572), (220, 1912286), (440, 956143)]