1955020

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{409}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 4132800

約数和(自身を除く): 2177780

約数列:

[1, 2, 4, 5, 10, 20, 239, 409, 478, 818, 956, 1195, 1636, 2045, 2390, 4090, 4780, 8180, 97751, 195502, 391004, 488755, 977510, 1955020]

約数ペア:

[(1, 1955020), (2, 977510), (4, 488755), (5, 391004), (10, 195502), (20, 97751), (239, 8180), (409, 4780), (478, 4090), (818, 2390), (956, 2045), (1195, 1636)]