157959440

素因数分解:

$2^4\times 5^1\times {\mathrm{1974493}}^1$

素因数の和:1974506

約数の個数: 20

約数和(自身を含む): 367255884

約数和(自身を除く): 209296444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1974493, 3948986, 7897972, 9872465, 15795944, 19744930, 31591888, 39489860, 78979720, 157959440]

約数ペア:

[(1, 157959440), (2, 78979720), (4, 39489860), (5, 31591888), (8, 19744930), (10, 15795944), (16, 9872465), (20, 7897972), (40, 3948986), (80, 1974493)]