218567890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1\times {\mathrm{839}}^1$

素因数の和:1194

約数の個数: 32

約数和(自身を含む): 399168000

約数和(自身を除く): 180600110

約数列:

[1, 2, 5, 10, 109, 218, 239, 478, 545, 839, 1090, 1195, 1678, 2390, 4195, 8390, 26051, 52102, 91451, 130255, 182902, 200521, 260510, 401042, 457255, 914510, 1002605, 2005210, 21856789, 43713578, 109283945, 218567890]

約数ペア:

[(1, 218567890), (2, 109283945), (5, 43713578), (10, 21856789), (109, 2005210), (218, 1002605), (239, 914510), (478, 457255), (545, 401042), (839, 260510), (1090, 200521), (1195, 182902), (1678, 130255), (2390, 91451), (4195, 52102), (8390, 26051)]