20451260

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4243}}^1$

素因数の和:4493

約数の個数: 24

約数和(自身を含む): 43136016

約数和(自身を除く): 22684756

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4243, 4820, 8486, 16972, 21215, 42430, 84860, 1022563, 2045126, 4090252, 5112815, 10225630, 20451260]

約数ペア:

[(1, 20451260), (2, 10225630), (4, 5112815), (5, 4090252), (10, 2045126), (20, 1022563), (241, 84860), (482, 42430), (964, 21215), (1205, 16972), (2410, 8486), (4243, 4820)]