61415480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{521}}^1$

素因数の和:960

約数の個数: 64

約数和(自身を含む): 158604480

約数和(自身を除く): 97189000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 421, 521, 842, 1042, 1684, 2084, 2105, 2605, 2947, 3368, 3647, 4168, 4210, 5210, 5894, 7294, 8420, 10420, 11788, 14588, 14735, 16840, 18235, 20840, 23576, 29176, 29470, 36470, 58940, 72940, 117880, 145880, 219341, 438682, 877364, 1096705, 1535387, 1754728, 2193410, 3070774, 4386820, 6141548, 7676935, 8773640, 12283096, 15353870, 30707740, 61415480]

約数ペア:

[(1, 61415480), (2, 30707740), (4, 15353870), (5, 12283096), (7, 8773640), (8, 7676935), (10, 6141548), (14, 4386820), (20, 3070774), (28, 2193410), (35, 1754728), (40, 1535387), (56, 1096705), (70, 877364), (140, 438682), (280, 219341), (421, 145880), (521, 117880), (842, 72940), (1042, 58940), (1684, 36470), (2084, 29470), (2105, 29176), (2605, 23576), (2947, 20840), (3368, 18235), (3647, 16840), (4168, 14735), (4210, 14588), (5210, 11788), (5894, 10420), (7294, 8420)]