345020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1327}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 780864

約数和(自身を除く): 435844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1327, 2654, 5308, 6635, 13270, 17251, 26540, 34502, 69004, 86255, 172510, 345020]

約数ペア:

[(1, 345020), (2, 172510), (4, 86255), (5, 69004), (10, 34502), (13, 26540), (20, 17251), (26, 13270), (52, 6635), (65, 5308), (130, 2654), (260, 1327)]