20454890

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{5861}}^1$

素因数の和:6217

約数の個数: 16

約数和(自身を含む): 36930600

約数和(自身を除く): 16475710

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 5861, 11722, 29305, 58610, 2045489, 4090978, 10227445, 20454890]

約数ペア:

[(1, 20454890), (2, 10227445), (5, 4090978), (10, 2045489), (349, 58610), (698, 29305), (1745, 11722), (3490, 5861)]