7840640

素因数分解:

$2^7\times 5^1\times {\mathrm{12251}}^1$

素因数の和:12270

約数の個数: 32

約数和(自身を含む): 18745560

約数和(自身を除く): 10904920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 12251, 24502, 49004, 61255, 98008, 122510, 196016, 245020, 392032, 490040, 784064, 980080, 1568128, 1960160, 3920320, 7840640]

約数ペア:

[(1, 7840640), (2, 3920320), (4, 1960160), (5, 1568128), (8, 980080), (10, 784064), (16, 490040), (20, 392032), (32, 245020), (40, 196016), (64, 122510), (80, 98008), (128, 61255), (160, 49004), (320, 24502), (640, 12251)]