31988440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72701}}^1$

素因数の和:72723

約数の個数: 32

約数和(自身を含む): 78518160

約数和(自身を除く): 46529720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 72701, 145402, 290804, 363505, 581608, 727010, 799711, 1454020, 1599422, 2908040, 3198844, 3998555, 6397688, 7997110, 15994220, 31988440]

約数ペア:

[(1, 31988440), (2, 15994220), (4, 7997110), (5, 6397688), (8, 3998555), (10, 3198844), (11, 2908040), (20, 1599422), (22, 1454020), (40, 799711), (44, 727010), (55, 581608), (88, 363505), (110, 290804), (220, 145402), (440, 72701)]