2051230640

素因数分解:

$2^4\times 5^1\times {\mathrm{25640383}}^1$

素因数の和:25640396

約数の個数: 20

約数和(自身を含む): 4769111424

約数和(自身を除く): 2717880784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25640383, 51280766, 102561532, 128201915, 205123064, 256403830, 410246128, 512807660, 1025615320, 2051230640]

約数ペア:

[(1, 2051230640), (2, 1025615320), (4, 512807660), (5, 410246128), (8, 256403830), (10, 205123064), (16, 128201915), (20, 102561532), (40, 51280766), (80, 25640383)]