1813080140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1276817}}^1$

素因数の和:1276897

約数の個数: 24

約数和(自身を含む): 3861097632

約数和(自身を除く): 2048017492

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1276817, 2553634, 5107268, 6384085, 12768170, 25536340, 90654007, 181308014, 362616028, 453270035, 906540070, 1813080140]

約数ペア:

[(1, 1813080140), (2, 906540070), (4, 453270035), (5, 362616028), (10, 181308014), (20, 90654007), (71, 25536340), (142, 12768170), (284, 6384085), (355, 5107268), (710, 2553634), (1420, 1276817)]