80491580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{309583}}^1$

素因数の和:309605

約数の個数: 24

約数和(自身を含む): 182035392

約数和(自身を除く): 101543812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 309583, 619166, 1238332, 1547915, 3095830, 4024579, 6191660, 8049158, 16098316, 20122895, 40245790, 80491580]

約数ペア:

[(1, 80491580), (2, 40245790), (4, 20122895), (5, 16098316), (10, 8049158), (13, 6191660), (20, 4024579), (26, 3095830), (52, 1547915), (65, 1238332), (130, 619166), (260, 309583)]