31456220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{463}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 68597760

約数和(自身を除く): 37141540

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 316, 395, 430, 463, 790, 860, 926, 1580, 1852, 2315, 3397, 4630, 6794, 9260, 13588, 16985, 19909, 33970, 36577, 39818, 67940, 73154, 79636, 99545, 146308, 182885, 199090, 365770, 398180, 731540, 1572811, 3145622, 6291244, 7864055, 15728110, 31456220]

約数ペア:

[(1, 31456220), (2, 15728110), (4, 7864055), (5, 6291244), (10, 3145622), (20, 1572811), (43, 731540), (79, 398180), (86, 365770), (158, 199090), (172, 182885), (215, 146308), (316, 99545), (395, 79636), (430, 73154), (463, 67940), (790, 39818), (860, 36577), (926, 33970), (1580, 19909), (1852, 16985), (2315, 13588), (3397, 9260), (4630, 6794)]