26980456840

素因数分解:

$2^3\times 5^1\times {\mathrm{674511421}}^1$

素因数の和:674511432

約数の個数: 16

約数和(自身を含む): 60706027980

約数和(自身を除く): 33725571140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 674511421, 1349022842, 2698045684, 3372557105, 5396091368, 6745114210, 13490228420, 26980456840]

約数ペア:

[(1, 26980456840), (2, 13490228420), (4, 6745114210), (5, 5396091368), (8, 3372557105), (10, 2698045684), (20, 1349022842), (40, 674511421)]