1780493620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1459421}}^1$

素因数の和:1459491

約数の個数: 24

約数和(自身を含む): 3800334888

約数和(自身を除く): 2019841268

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1459421, 2918842, 5837684, 7297105, 14594210, 29188420, 89024681, 178049362, 356098724, 445123405, 890246810, 1780493620]

約数ペア:

[(1, 1780493620), (2, 890246810), (4, 445123405), (5, 356098724), (10, 178049362), (20, 89024681), (61, 29188420), (122, 14594210), (244, 7297105), (305, 5837684), (610, 2918842), (1220, 1459421)]