19808050

素因数分解:

$2^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{941}}^1$

素因数の和:1374

約数の個数: 24

約数和(自身を含む): 36969732

約数和(自身を除く): 17161682

約数列:

[1, 2, 5, 10, 25, 50, 421, 842, 941, 1882, 2105, 4210, 4705, 9410, 10525, 21050, 23525, 47050, 396161, 792322, 1980805, 3961610, 9904025, 19808050]

約数ペア:

[(1, 19808050), (2, 9904025), (5, 3961610), (10, 1980805), (25, 792322), (50, 396161), (421, 47050), (842, 23525), (941, 21050), (1882, 10525), (2105, 9410), (4210, 4705)]