199048100

素因数分解:

$2^2\times 5^2\times {\mathrm{1990481}}^1$

素因数の和:1990495

約数の個数: 18

約数和(自身を含む): 431934594

約数和(自身を除く): 232886494

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1990481, 3980962, 7961924, 9952405, 19904810, 39809620, 49762025, 99524050, 199048100]

約数ペア:

[(1, 199048100), (2, 99524050), (4, 49762025), (5, 39809620), (10, 19904810), (20, 9952405), (25, 7961924), (50, 3980962), (100, 1990481)]