20690230

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{787}}^1$

素因数の和:1044

約数の個数: 32

約数和(自身を含む): 40849920

約数和(自身を除く): 20159690

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 239, 478, 787, 1195, 1574, 2390, 2629, 3935, 5258, 7870, 8657, 13145, 17314, 26290, 43285, 86570, 188093, 376186, 940465, 1880930, 2069023, 4138046, 10345115, 20690230]

約数ペア:

[(1, 20690230), (2, 10345115), (5, 4138046), (10, 2069023), (11, 1880930), (22, 940465), (55, 376186), (110, 188093), (239, 86570), (478, 43285), (787, 26290), (1195, 17314), (1574, 13145), (2390, 8657), (2629, 7870), (3935, 5258)]