90630820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{647363}}^1$

素因数の和:647379

約数の個数: 24

約数和(自身を含む): 217514304

約数和(自身を除く): 126883484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 647363, 1294726, 2589452, 3236815, 4531541, 6473630, 9063082, 12947260, 18126164, 22657705, 45315410, 90630820]

約数ペア:

[(1, 90630820), (2, 45315410), (4, 22657705), (5, 18126164), (7, 12947260), (10, 9063082), (14, 6473630), (20, 4531541), (28, 3236815), (35, 2589452), (70, 1294726), (140, 647363)]