198396200

素因数分解:

$2^3\times 5^2\times {\mathrm{991981}}^1$

素因数の和:991997

約数の個数: 24

約数和(自身を含む): 461271630

約数和(自身を除く): 262875430

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 991981, 1983962, 3967924, 4959905, 7935848, 9919810, 19839620, 24799525, 39679240, 49599050, 99198100, 198396200]

約数ペア:

[(1, 198396200), (2, 99198100), (4, 49599050), (5, 39679240), (8, 24799525), (10, 19839620), (20, 9919810), (25, 7935848), (40, 4959905), (50, 3967924), (100, 1983962), (200, 991981)]