8404990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{701}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 16679520

約数和(自身を除く): 8274530

約数列:

[1, 2, 5, 10, 11, 22, 55, 109, 110, 218, 545, 701, 1090, 1199, 1402, 2398, 3505, 5995, 7010, 7711, 11990, 15422, 38555, 76409, 77110, 152818, 382045, 764090, 840499, 1680998, 4202495, 8404990]

約数ペア:

[(1, 8404990), (2, 4202495), (5, 1680998), (10, 840499), (11, 764090), (22, 382045), (55, 152818), (109, 77110), (110, 76409), (218, 38555), (545, 15422), (701, 11990), (1090, 7711), (1199, 7010), (1402, 5995), (2398, 3505)]