377777740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{4649}}^1$

素因数の和:4914

約数の個数: 48

約数和(自身を含む): 843696000

約数和(自身を除く): 465918260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 340, 478, 956, 1195, 2390, 4063, 4649, 4780, 8126, 9298, 16252, 18596, 20315, 23245, 40630, 46490, 79033, 81260, 92980, 158066, 316132, 395165, 790330, 1111111, 1580660, 2222222, 4444444, 5555555, 11111110, 18888887, 22222220, 37777774, 75555548, 94444435, 188888870, 377777740]

約数ペア:

[(1, 377777740), (2, 188888870), (4, 94444435), (5, 75555548), (10, 37777774), (17, 22222220), (20, 18888887), (34, 11111110), (68, 5555555), (85, 4444444), (170, 2222222), (239, 1580660), (340, 1111111), (478, 790330), (956, 395165), (1195, 316132), (2390, 158066), (4063, 92980), (4649, 81260), (4780, 79033), (8126, 46490), (9298, 40630), (16252, 23245), (18596, 20315)]