25971280

素因数分解:

$2^4\times 5^1\times {\mathrm{324641}}^1$

素因数の和:324654

約数の個数: 20

約数和(自身を含む): 60383412

約数和(自身を除く): 34412132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 324641, 649282, 1298564, 1623205, 2597128, 3246410, 5194256, 6492820, 12985640, 25971280]

約数ペア:

[(1, 25971280), (2, 12985640), (4, 6492820), (5, 5194256), (8, 3246410), (10, 2597128), (16, 1623205), (20, 1298564), (40, 649282), (80, 324641)]