159940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{727}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 366912

約数和(自身を除く): 206972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 727, 1454, 2908, 3635, 7270, 7997, 14540, 15994, 31988, 39985, 79970, 159940]

約数ペア:

[(1, 159940), (2, 79970), (4, 39985), (5, 31988), (10, 15994), (11, 14540), (20, 7997), (22, 7270), (44, 3635), (55, 2908), (110, 1454), (220, 727)]