520640

素因数分解:

$2^6\times 5^1\times {\mathrm{1627}}^1$

素因数の和:1644

約数の個数: 28

約数和(自身を含む): 1240536

約数和(自身を除く): 719896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1627, 3254, 6508, 8135, 13016, 16270, 26032, 32540, 52064, 65080, 104128, 130160, 260320, 520640]

約数ペア:

[(1, 520640), (2, 260320), (4, 130160), (5, 104128), (8, 65080), (10, 52064), (16, 32540), (20, 26032), (32, 16270), (40, 13016), (64, 8135), (80, 6508), (160, 3254), (320, 1627)]