13317760

素因数分解:

$2^7\times 5^1\times {\mathrm{20809}}^1$

素因数の和:20828

約数の個数: 32

約数和(自身を含む): 31839300

約数和(自身を除く): 18521540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 20809, 41618, 83236, 104045, 166472, 208090, 332944, 416180, 665888, 832360, 1331776, 1664720, 2663552, 3329440, 6658880, 13317760]

約数ペア:

[(1, 13317760), (2, 6658880), (4, 3329440), (5, 2663552), (8, 1664720), (10, 1331776), (16, 832360), (20, 665888), (32, 416180), (40, 332944), (64, 208090), (80, 166472), (128, 104045), (160, 83236), (320, 41618), (640, 20809)]