2151340

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{409}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 4546080

約数和(自身を除く): 2394740

約数列:

[1, 2, 4, 5, 10, 20, 263, 409, 526, 818, 1052, 1315, 1636, 2045, 2630, 4090, 5260, 8180, 107567, 215134, 430268, 537835, 1075670, 2151340]

約数ペア:

[(1, 2151340), (2, 1075670), (4, 537835), (5, 430268), (10, 215134), (20, 107567), (263, 8180), (409, 5260), (526, 4090), (818, 2630), (1052, 2045), (1315, 1636)]