81564604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{7213}}^1$

素因数の和:7485

約数の個数: 24

約数和(自身を含む): 156341808

約数和(自身を除く): 74777204

約数列:

[1, 2, 4, 11, 22, 44, 257, 514, 1028, 2827, 5654, 7213, 11308, 14426, 28852, 79343, 158686, 317372, 1853741, 3707482, 7414964, 20391151, 40782302, 81564604]

約数ペア:

[(1, 81564604), (2, 40782302), (4, 20391151), (11, 7414964), (22, 3707482), (44, 1853741), (257, 317372), (514, 158686), (1028, 79343), (2827, 28852), (5654, 14426), (7213, 11308)]