20549770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1109}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 39560400

約数和(自身を除く): 19010630

約数列:

[1, 2, 5, 10, 17, 34, 85, 109, 170, 218, 545, 1090, 1109, 1853, 2218, 3706, 5545, 9265, 11090, 18530, 18853, 37706, 94265, 120881, 188530, 241762, 604405, 1208810, 2054977, 4109954, 10274885, 20549770]

約数ペア:

[(1, 20549770), (2, 10274885), (5, 4109954), (10, 2054977), (17, 1208810), (34, 604405), (85, 241762), (109, 188530), (170, 120881), (218, 94265), (545, 37706), (1090, 18853), (1109, 18530), (1853, 11090), (2218, 9265), (3706, 5545)]