31581640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{14897}}^1$

素因数の和:14961

約数の個数: 32

約数和(自身を含む): 72404280

約数和(自身を除く): 40822640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 14897, 29794, 59588, 74485, 119176, 148970, 297940, 595880, 789541, 1579082, 3158164, 3947705, 6316328, 7895410, 15790820, 31581640]

約数ペア:

[(1, 31581640), (2, 15790820), (4, 7895410), (5, 6316328), (8, 3947705), (10, 3158164), (20, 1579082), (40, 789541), (53, 595880), (106, 297940), (212, 148970), (265, 119176), (424, 74485), (530, 59588), (1060, 29794), (2120, 14897)]