200021720

素因数分解:

$2^3\times 5^1\times {\mathrm{5000543}}^1$

素因数の和:5000554

約数の個数: 16

約数和(自身を含む): 450048960

約数和(自身を除く): 250027240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5000543, 10001086, 20002172, 25002715, 40004344, 50005430, 100010860, 200021720]

約数ペア:

[(1, 200021720), (2, 100010860), (4, 50005430), (5, 40004344), (8, 25002715), (10, 20002172), (20, 10001086), (40, 5000543)]