889889680

素因数分解:

$2^4\times 5^1\times {\mathrm{11123621}}^1$

素因数の和:11123634

約数の個数: 20

約数和(自身を含む): 2068993692

約数和(自身を除く): 1179104012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11123621, 22247242, 44494484, 55618105, 88988968, 111236210, 177977936, 222472420, 444944840, 889889680]

約数ペア:

[(1, 889889680), (2, 444944840), (4, 222472420), (5, 177977936), (8, 111236210), (10, 88988968), (16, 55618105), (20, 44494484), (40, 22247242), (80, 11123621)]