20784872788

素因数分解:

$2^2\times {\mathrm{571}}^1\times {\mathrm{1741}}^1\times {\mathrm{5227}}^1$

素因数の和:7543

約数の個数: 24

約数和(自身を含む): 36465132704

約数和(自身を除く): 15680259916

約数列:

[1, 2, 4, 571, 1142, 1741, 2284, 3482, 5227, 6964, 10454, 20908, 994111, 1988222, 2984617, 3976444, 5969234, 9100207, 11938468, 18200414, 36400828, 5196218197, 10392436394, 20784872788]

約数ペア:

[(1, 20784872788), (2, 10392436394), (4, 5196218197), (571, 36400828), (1142, 18200414), (1741, 11938468), (2284, 9100207), (3482, 5969234), (5227, 3976444), (6964, 2984617), (10454, 1988222), (20908, 994111)]