87161480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{311291}}^1$

素因数の和:311309

約数の個数: 32

約数和(自身を含む): 224130240

約数和(自身を除く): 136968760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 311291, 622582, 1245164, 1556455, 2179037, 2490328, 3112910, 4358074, 6225820, 8716148, 10895185, 12451640, 17432296, 21790370, 43580740, 87161480]

約数ペア:

[(1, 87161480), (2, 43580740), (4, 21790370), (5, 17432296), (7, 12451640), (8, 10895185), (10, 8716148), (14, 6225820), (20, 4358074), (28, 3112910), (35, 2490328), (40, 2179037), (56, 1556455), (70, 1245164), (140, 622582), (280, 311291)]