20172089945

素因数分解:

$5^1\times 7^2\times {\mathrm{461}}^1\times {\mathrm{178601}}^1$

素因数の和:179081

約数の個数: 24

約数和(自身を含む): 28219830408

約数和(自身を除く): 8047740463

約数列:

[1, 5, 7, 35, 49, 245, 461, 2305, 3227, 16135, 22589, 112945, 178601, 893005, 1250207, 6251035, 8751449, 43757245, 82335061, 411675305, 576345427, 2881727135, 4034417989, 20172089945]

約数ペア:

[(1, 20172089945), (5, 4034417989), (7, 2881727135), (35, 576345427), (49, 411675305), (245, 82335061), (461, 43757245), (2305, 8751449), (3227, 6251035), (16135, 1250207), (22589, 893005), (112945, 178601)]