20129997890

素因数分解:

$2^1\times 5^1\times {\mathrm{739}}^1\times {\mathrm{2723951}}^1$

素因数の和:2724697

約数の個数: 16

約数和(自身を含む): 36283040640

約数和(自身を除く): 16153042750

約数列:

[1, 2, 5, 10, 739, 1478, 3695, 7390, 2723951, 5447902, 13619755, 27239510, 2012999789, 4025999578, 10064998945, 20129997890]

約数ペア:

[(1, 20129997890), (2, 10064998945), (5, 4025999578), (10, 2012999789), (739, 27239510), (1478, 13619755), (3695, 5447902), (7390, 2723951)]