170784820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{2797}}^1$

素因数の和:2920

約数の個数: 48

約数和(自身を含む): 372290688

約数和(自身を除く): 201505868

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 215, 284, 355, 430, 710, 860, 1420, 2797, 3053, 5594, 6106, 11188, 12212, 13985, 15265, 27970, 30530, 55940, 61060, 120271, 198587, 240542, 397174, 481084, 601355, 794348, 992935, 1202710, 1985870, 2405420, 3971740, 8539241, 17078482, 34156964, 42696205, 85392410, 170784820]

約数ペア:

[(1, 170784820), (2, 85392410), (4, 42696205), (5, 34156964), (10, 17078482), (20, 8539241), (43, 3971740), (71, 2405420), (86, 1985870), (142, 1202710), (172, 992935), (215, 794348), (284, 601355), (355, 481084), (430, 397174), (710, 240542), (860, 198587), (1420, 120271), (2797, 61060), (3053, 55940), (5594, 30530), (6106, 27970), (11188, 15265), (12212, 13985)]