520019990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{23887}}^1$

素因数の和:24212

約数の個数: 32

約数和(自身を含む): 1073240064

約数和(自身を除く): 553220074

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 311, 622, 1555, 2177, 3110, 4354, 10885, 21770, 23887, 47774, 119435, 167209, 238870, 334418, 836045, 1672090, 7428857, 14857714, 37144285, 52001999, 74288570, 104003998, 260009995, 520019990]

約数ペア:

[(1, 520019990), (2, 260009995), (5, 104003998), (7, 74288570), (10, 52001999), (14, 37144285), (35, 14857714), (70, 7428857), (311, 1672090), (622, 836045), (1555, 334418), (2177, 238870), (3110, 167209), (4354, 119435), (10885, 47774), (21770, 23887)]