78940510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{1999}}^1$

素因数の和:2376

約数の個数: 32

約数和(自身を含む): 155520000

約数和(自身を除く): 76579490

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 359, 718, 1795, 1999, 3590, 3949, 3998, 7898, 9995, 19745, 19990, 21989, 39490, 43978, 109945, 219890, 717641, 1435282, 3588205, 7176410, 7894051, 15788102, 39470255, 78940510]

約数ペア:

[(1, 78940510), (2, 39470255), (5, 15788102), (10, 7894051), (11, 7176410), (22, 3588205), (55, 1435282), (110, 717641), (359, 219890), (718, 109945), (1795, 43978), (1999, 39490), (3590, 21989), (3949, 19990), (3998, 19745), (7898, 9995)]