157080640

素因数分解:

$2^6\times 5^1\times {\mathrm{490877}}^1$

素因数の和:490894

約数の個数: 28

約数和(自身を含む): 374049036

約数和(自身を除く): 216968396

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 490877, 981754, 1963508, 2454385, 3927016, 4908770, 7854032, 9817540, 15708064, 19635080, 31416128, 39270160, 78540320, 157080640]

約数ペア:

[(1, 157080640), (2, 78540320), (4, 39270160), (5, 31416128), (8, 19635080), (10, 15708064), (16, 9817540), (20, 7854032), (32, 4908770), (40, 3927016), (64, 2454385), (80, 1963508), (160, 981754), (320, 490877)]