1401408020

素因数分解:

$2^2\times 5^1\times {\mathrm{70070401}}^1$

素因数の和:70070410

約数の個数: 12

約数和(自身を含む): 2942956884

約数和(自身を除く): 1541548864

約数列:

[1, 2, 4, 5, 10, 20, 70070401, 140140802, 280281604, 350352005, 700704010, 1401408020]

約数ペア:

[(1, 1401408020), (2, 700704010), (4, 350352005), (5, 280281604), (10, 140140802), (20, 70070401)]