1990291260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{157211}}^1$

素因数の和:157434

約数の個数: 48

約数和(自身を含む): 5599262592

約数和(自身を除く): 3608971332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 2110, 2532, 3165, 4220, 6330, 12660, 157211, 314422, 471633, 628844, 786055, 943266, 1572110, 1886532, 2358165, 3144220, 4716330, 9432660, 33171521, 66343042, 99514563, 132686084, 165857605, 199029126, 331715210, 398058252, 497572815, 663430420, 995145630, 1990291260]

約数ペア:

[(1, 1990291260), (2, 995145630), (3, 663430420), (4, 497572815), (5, 398058252), (6, 331715210), (10, 199029126), (12, 165857605), (15, 132686084), (20, 99514563), (30, 66343042), (60, 33171521), (211, 9432660), (422, 4716330), (633, 3144220), (844, 2358165), (1055, 1886532), (1266, 1572110), (2110, 943266), (2532, 786055), (3165, 628844), (4220, 471633), (6330, 314422), (12660, 157211)]