20045948

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{991}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 37914240

約数和(自身を除く): 17868292

約数列:

[1, 2, 4, 13, 26, 52, 389, 778, 991, 1556, 1982, 3964, 5057, 10114, 12883, 20228, 25766, 51532, 385499, 770998, 1541996, 5011487, 10022974, 20045948]

約数ペア:

[(1, 20045948), (2, 10022974), (4, 5011487), (13, 1541996), (26, 770998), (52, 385499), (389, 51532), (778, 25766), (991, 20228), (1556, 12883), (1982, 10114), (3964, 5057)]