20225140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{727}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 46230912

約数和(自身を除く): 26005772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 428, 535, 727, 1070, 1391, 1454, 2140, 2782, 2908, 3635, 5564, 6955, 7270, 9451, 13910, 14540, 18902, 27820, 37804, 47255, 77789, 94510, 155578, 189020, 311156, 388945, 777890, 1011257, 1555780, 2022514, 4045028, 5056285, 10112570, 20225140]

約数ペア:

[(1, 20225140), (2, 10112570), (4, 5056285), (5, 4045028), (10, 2022514), (13, 1555780), (20, 1011257), (26, 777890), (52, 388945), (65, 311156), (107, 189020), (130, 155578), (214, 94510), (260, 77789), (428, 47255), (535, 37804), (727, 27820), (1070, 18902), (1391, 14540), (1454, 13910), (2140, 9451), (2782, 7270), (2908, 6955), (3635, 5564)]