31532120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{12923}}^1$

素因数の和:12995

約数の個数: 32

約数和(自身を含む): 72115920

約数和(自身を除く): 40583800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 12923, 25846, 51692, 64615, 103384, 129230, 258460, 516920, 788303, 1576606, 3153212, 3941515, 6306424, 7883030, 15766060, 31532120]

約数ペア:

[(1, 31532120), (2, 15766060), (4, 7883030), (5, 6306424), (8, 3941515), (10, 3153212), (20, 1576606), (40, 788303), (61, 516920), (122, 258460), (244, 129230), (305, 103384), (488, 64615), (610, 51692), (1220, 25846), (2440, 12923)]