20205620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{601}}^1$

素因数の和:692

約数の個数: 36

約数和(自身を含む): 43564332

約数和(自身を除く): 23358712

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 601, 820, 1202, 1681, 2404, 3005, 3362, 6010, 6724, 8405, 12020, 16810, 24641, 33620, 49282, 98564, 123205, 246410, 492820, 1010281, 2020562, 4041124, 5051405, 10102810, 20205620]

約数ペア:

[(1, 20205620), (2, 10102810), (4, 5051405), (5, 4041124), (10, 2020562), (20, 1010281), (41, 492820), (82, 246410), (164, 123205), (205, 98564), (410, 49282), (601, 33620), (820, 24641), (1202, 16810), (1681, 12020), (2404, 8405), (3005, 6724), (3362, 6010)]