55341980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{31091}}^1$

素因数の和:31189

約数の個数: 24

約数和(自身を含む): 117527760

約数和(自身を除く): 62185780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 31091, 62182, 124364, 155455, 310910, 621820, 2767099, 5534198, 11068396, 13835495, 27670990, 55341980]

約数ペア:

[(1, 55341980), (2, 27670990), (4, 13835495), (5, 11068396), (10, 5534198), (20, 2767099), (89, 621820), (178, 310910), (356, 155455), (445, 124364), (890, 62182), (1780, 31091)]