90909140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{5113}}^1$

素因数の和:5256

約数の個数: 48

約数和(自身を含む): 219942912

約数和(自身を除く): 129033772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1270, 1778, 2540, 3556, 4445, 5113, 8890, 10226, 17780, 20452, 25565, 35791, 51130, 71582, 102260, 143164, 178955, 357910, 649351, 715820, 1298702, 2597404, 3246755, 4545457, 6493510, 9090914, 12987020, 18181828, 22727285, 45454570, 90909140]

約数ペア:

[(1, 90909140), (2, 45454570), (4, 22727285), (5, 18181828), (7, 12987020), (10, 9090914), (14, 6493510), (20, 4545457), (28, 3246755), (35, 2597404), (70, 1298702), (127, 715820), (140, 649351), (254, 357910), (508, 178955), (635, 143164), (889, 102260), (1270, 71582), (1778, 51130), (2540, 35791), (3556, 25565), (4445, 20452), (5113, 17780), (8890, 10226)]