20983715080

素因数分解:

$2^3\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{410801}}^1$

素因数の和:412089

約数の個数: 32

約数和(自身を含む): 47250446040

約数和(自身を除く): 26266730960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1277, 2554, 5108, 6385, 10216, 12770, 25540, 51080, 410801, 821602, 1643204, 2054005, 3286408, 4108010, 8216020, 16432040, 524592877, 1049185754, 2098371508, 2622964385, 4196743016, 5245928770, 10491857540, 20983715080]

約数ペア:

[(1, 20983715080), (2, 10491857540), (4, 5245928770), (5, 4196743016), (8, 2622964385), (10, 2098371508), (20, 1049185754), (40, 524592877), (1277, 16432040), (2554, 8216020), (5108, 4108010), (6385, 3286408), (10216, 2054005), (12770, 1643204), (25540, 821602), (51080, 410801)]