401025580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{2971}}^1$

素因数の和:3394

約数の個数: 48

約数和(自身を含む): 894239136

約数和(自身を除く): 493213556

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 397, 794, 1588, 1985, 2971, 3970, 5942, 6749, 7940, 11884, 13498, 14855, 26996, 29710, 33745, 50507, 59420, 67490, 101014, 134980, 202028, 252535, 505070, 1010140, 1179487, 2358974, 4717948, 5897435, 11794870, 20051279, 23589740, 40102558, 80205116, 100256395, 200512790, 401025580]

約数ペア:

[(1, 401025580), (2, 200512790), (4, 100256395), (5, 80205116), (10, 40102558), (17, 23589740), (20, 20051279), (34, 11794870), (68, 5897435), (85, 4717948), (170, 2358974), (340, 1179487), (397, 1010140), (794, 505070), (1588, 252535), (1985, 202028), (2971, 134980), (3970, 101014), (5942, 67490), (6749, 59420), (7940, 50507), (11884, 33745), (13498, 29710), (14855, 26996)]