207830020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{74759}}^1$

素因数の和:74907

約数の個数: 24

約数和(自身を含む): 439588800

約数和(自身を除く): 231758780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 74759, 149518, 299036, 373795, 747590, 1495180, 10391501, 20783002, 41566004, 51957505, 103915010, 207830020]

約数ペア:

[(1, 207830020), (2, 103915010), (4, 51957505), (5, 41566004), (10, 20783002), (20, 10391501), (139, 1495180), (278, 747590), (556, 373795), (695, 299036), (1390, 149518), (2780, 74759)]