20598620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{21019}}^1$

素因数の和:21042

約数の個数: 36

約数和(自身を含む): 50321880

約数和(自身を除く): 29723260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 21019, 42038, 84076, 105095, 147133, 210190, 294266, 420380, 588532, 735665, 1029931, 1471330, 2059862, 2942660, 4119724, 5149655, 10299310, 20598620]

約数ペア:

[(1, 20598620), (2, 10299310), (4, 5149655), (5, 4119724), (7, 2942660), (10, 2059862), (14, 1471330), (20, 1029931), (28, 735665), (35, 588532), (49, 420380), (70, 294266), (98, 210190), (140, 147133), (196, 105095), (245, 84076), (490, 42038), (980, 21019)]