201968020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{142231}}^1$

素因数の和:142311

約数の個数: 24

約数和(自身を含む): 430109568

約数和(自身を除く): 228141548

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 142231, 284462, 568924, 711155, 1422310, 2844620, 10098401, 20196802, 40393604, 50492005, 100984010, 201968020]

約数ペア:

[(1, 201968020), (2, 100984010), (4, 50492005), (5, 40393604), (10, 20196802), (20, 10098401), (71, 2844620), (142, 1422310), (284, 711155), (355, 568924), (710, 284462), (1420, 142231)]