20238280

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1867}}^1$

素因数の和:2149

約数の個数: 32

約数和(自身を含む): 45728640

約数和(自身を除く): 25490360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 1867, 2168, 2710, 3734, 5420, 7468, 9335, 10840, 14936, 18670, 37340, 74680, 505957, 1011914, 2023828, 2529785, 4047656, 5059570, 10119140, 20238280]

約数ペア:

[(1, 20238280), (2, 10119140), (4, 5059570), (5, 4047656), (8, 2529785), (10, 2023828), (20, 1011914), (40, 505957), (271, 74680), (542, 37340), (1084, 18670), (1355, 14936), (1867, 10840), (2168, 9335), (2710, 7468), (3734, 5420)]