402794900

素因数分解:

$2^2\times 5^2\times {\mathrm{1997}}^1\times {\mathrm{2017}}^1$

素因数の和:4028

約数の個数: 36

約数和(自身を含む): 874936188

約数和(自身を除く): 472141288

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1997, 2017, 3994, 4034, 7988, 8068, 9985, 10085, 19970, 20170, 39940, 40340, 49925, 50425, 99850, 100850, 199700, 201700, 4027949, 8055898, 16111796, 20139745, 40279490, 80558980, 100698725, 201397450, 402794900]

約数ペア:

[(1, 402794900), (2, 201397450), (4, 100698725), (5, 80558980), (10, 40279490), (20, 20139745), (25, 16111796), (50, 8055898), (100, 4027949), (1997, 201700), (2017, 199700), (3994, 100850), (4034, 99850), (7988, 50425), (8068, 49925), (9985, 40340), (10085, 39940), (19970, 20170)]