100851280

素因数分解:

$2^4\times 5^1\times {\mathrm{1260641}}^1$

素因数の和:1260654

約数の個数: 20

約数和(自身を含む): 234479412

約数和(自身を除く): 133628132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1260641, 2521282, 5042564, 6303205, 10085128, 12606410, 20170256, 25212820, 50425640, 100851280]

約数ペア:

[(1, 100851280), (2, 50425640), (4, 25212820), (5, 20170256), (8, 12606410), (10, 10085128), (16, 6303205), (20, 5042564), (40, 2521282), (80, 1260641)]