91920040

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{10891}}^1$

素因数の和:11113

約数の個数: 32

約数和(自身を含む): 207819360

約数和(自身を除く): 115899320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 10891, 21782, 43564, 54455, 87128, 108910, 217820, 435640, 2298001, 4596002, 9192004, 11490005, 18384008, 22980010, 45960020, 91920040]

約数ペア:

[(1, 91920040), (2, 45960020), (4, 22980010), (5, 18384008), (8, 11490005), (10, 9192004), (20, 4596002), (40, 2298001), (211, 435640), (422, 217820), (844, 108910), (1055, 87128), (1688, 54455), (2110, 43564), (4220, 21782), (8440, 10891)]