31579940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1181}}^1$

素因数の和:1388

約数の個数: 48

約数和(自身を含む): 76253184

約数和(自身を除く): 44673244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 764, 955, 1181, 1337, 1910, 2362, 2674, 3820, 4724, 5348, 5905, 6685, 8267, 11810, 13370, 16534, 23620, 26740, 33068, 41335, 82670, 165340, 225571, 451142, 902284, 1127855, 1578997, 2255710, 3157994, 4511420, 6315988, 7894985, 15789970, 31579940]

約数ペア:

[(1, 31579940), (2, 15789970), (4, 7894985), (5, 6315988), (7, 4511420), (10, 3157994), (14, 2255710), (20, 1578997), (28, 1127855), (35, 902284), (70, 451142), (140, 225571), (191, 165340), (382, 82670), (764, 41335), (955, 33068), (1181, 26740), (1337, 23620), (1910, 16534), (2362, 13370), (2674, 11810), (3820, 8267), (4724, 6685), (5348, 5905)]