256260810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{657079}}^1$

素因数の和:657102

約数の個数: 32

約数和(自身を含む): 662336640

約数和(自身を除く): 406075830

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 657079, 1314158, 1971237, 3285395, 3942474, 6570790, 8542027, 9856185, 17084054, 19712370, 25626081, 42710135, 51252162, 85420270, 128130405, 256260810]

約数ペア:

[(1, 256260810), (2, 128130405), (3, 85420270), (5, 51252162), (6, 42710135), (10, 25626081), (13, 19712370), (15, 17084054), (26, 9856185), (30, 8542027), (39, 6570790), (65, 3942474), (78, 3285395), (130, 1971237), (195, 1314158), (390, 657079)]