20126256475

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{419}}^1\times {\mathrm{11369}}^1$

素因数の和:11824

約数の個数: 36

約数和(自身を含む): 27090844200

約数和(自身を除く): 6964587725

約数列:

[1, 5, 13, 25, 65, 169, 325, 419, 845, 2095, 4225, 5447, 10475, 11369, 27235, 56845, 70811, 136175, 147797, 284225, 354055, 738985, 1770275, 1921361, 3694925, 4763611, 9606805, 23818055, 48034025, 61926943, 119090275, 309634715, 805050259, 1548173575, 4025251295, 20126256475]

約数ペア:

[(1, 20126256475), (5, 4025251295), (13, 1548173575), (25, 805050259), (65, 309634715), (169, 119090275), (325, 61926943), (419, 48034025), (845, 23818055), (2095, 9606805), (4225, 4763611), (5447, 3694925), (10475, 1921361), (11369, 1770275), (27235, 738985), (56845, 354055), (70811, 284225), (136175, 147797)]