20180921390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{288298877}}^1$

素因数の和:288298891

約数の個数: 16

約数和(自身を含む): 41515038432

約数和(自身を除く): 21334117042

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 288298877, 576597754, 1441494385, 2018092139, 2882988770, 4036184278, 10090460695, 20180921390]

約数ペア:

[(1, 20180921390), (2, 10090460695), (5, 4036184278), (7, 2882988770), (10, 2018092139), (14, 1441494385), (35, 576597754), (70, 288298877)]