198850

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:150

約数の個数: 24

約数和(自身を含む): 382788

約数和(自身を除く): 183938

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 97, 194, 205, 410, 485, 970, 1025, 2050, 2425, 3977, 4850, 7954, 19885, 39770, 99425, 198850]

約数ペア:

[(1, 198850), (2, 99425), (5, 39770), (10, 19885), (25, 7954), (41, 4850), (50, 3977), (82, 2425), (97, 2050), (194, 1025), (205, 970), (410, 485)]