64970220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{154691}}^1$

素因数の和:154710

約数の個数: 48

約数和(自身を含む): 207906048

約数和(自身を除く): 142935828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 154691, 309382, 464073, 618764, 773455, 928146, 1082837, 1546910, 1856292, 2165674, 2320365, 3093820, 3248511, 4331348, 4640730, 5414185, 6497022, 9281460, 10828370, 12994044, 16242555, 21656740, 32485110, 64970220]

約数ペア:

[(1, 64970220), (2, 32485110), (3, 21656740), (4, 16242555), (5, 12994044), (6, 10828370), (7, 9281460), (10, 6497022), (12, 5414185), (14, 4640730), (15, 4331348), (20, 3248511), (21, 3093820), (28, 2320365), (30, 2165674), (35, 1856292), (42, 1546910), (60, 1082837), (70, 928146), (84, 773455), (105, 618764), (140, 464073), (210, 309382), (420, 154691)]