1815340

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{653}}^1$

素因数の和:801

約数の個数: 24

約数和(自身を含む): 3845520

約数和(自身を除く): 2030180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 653, 695, 1306, 1390, 2612, 2780, 3265, 6530, 13060, 90767, 181534, 363068, 453835, 907670, 1815340]

約数ペア:

[(1, 1815340), (2, 907670), (4, 453835), (5, 363068), (10, 181534), (20, 90767), (139, 13060), (278, 6530), (556, 3265), (653, 2780), (695, 2612), (1306, 1390)]