20333020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{757}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 45843840

約数和(自身を除く): 25510820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 170, 316, 340, 395, 757, 790, 1343, 1514, 1580, 2686, 3028, 3785, 5372, 6715, 7570, 12869, 13430, 15140, 25738, 26860, 51476, 59803, 64345, 119606, 128690, 239212, 257380, 299015, 598030, 1016651, 1196060, 2033302, 4066604, 5083255, 10166510, 20333020]

約数ペア:

[(1, 20333020), (2, 10166510), (4, 5083255), (5, 4066604), (10, 2033302), (17, 1196060), (20, 1016651), (34, 598030), (68, 299015), (79, 257380), (85, 239212), (158, 128690), (170, 119606), (316, 64345), (340, 59803), (395, 51476), (757, 26860), (790, 25738), (1343, 15140), (1514, 13430), (1580, 12869), (2686, 7570), (3028, 6715), (3785, 5372)]