20219780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144427}}^1$

素因数の和:144443

約数の個数: 24

約数和(自身を含む): 48527808

約数和(自身を除く): 28308028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144427, 288854, 577708, 722135, 1010989, 1444270, 2021978, 2888540, 4043956, 5054945, 10109890, 20219780]

約数ペア:

[(1, 20219780), (2, 10109890), (4, 5054945), (5, 4043956), (7, 2888540), (10, 2021978), (14, 1444270), (20, 1010989), (28, 722135), (35, 577708), (70, 288854), (140, 144427)]