2568100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:496

約数の個数: 36

約数和(自身を含む): 5677588

約数和(自身を除く): 3109488

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 421, 610, 842, 1220, 1525, 1684, 2105, 3050, 4210, 6100, 8420, 10525, 21050, 25681, 42100, 51362, 102724, 128405, 256810, 513620, 642025, 1284050, 2568100]

約数ペア:

[(1, 2568100), (2, 1284050), (4, 642025), (5, 513620), (10, 256810), (20, 128405), (25, 102724), (50, 51362), (61, 42100), (100, 25681), (122, 21050), (244, 10525), (305, 8420), (421, 6100), (610, 4210), (842, 3050), (1220, 2105), (1525, 1684)]