889969240

素因数分解:

$2^3\times 5^1\times {\mathrm{22249231}}^1$

素因数の和:22249242

約数の個数: 16

約数和(自身を含む): 2002430880

約数和(自身を除く): 1112461640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 22249231, 44498462, 88996924, 111246155, 177993848, 222492310, 444984620, 889969240]

約数ペア:

[(1, 889969240), (2, 444984620), (4, 222492310), (5, 177993848), (8, 111246155), (10, 88996924), (20, 44498462), (40, 22249231)]