398367080

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{187909}}^1$

素因数の和:187973

約数の個数: 32

約数和(自身を含む): 913242600

約数和(自身を除く): 514875520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 187909, 375818, 751636, 939545, 1503272, 1879090, 3758180, 7516360, 9959177, 19918354, 39836708, 49795885, 79673416, 99591770, 199183540, 398367080]

約数ペア:

[(1, 398367080), (2, 199183540), (4, 99591770), (5, 79673416), (8, 49795885), (10, 39836708), (20, 19918354), (40, 9959177), (53, 7516360), (106, 3758180), (212, 1879090), (265, 1503272), (424, 939545), (530, 751636), (1060, 375818), (2120, 187909)]