128340290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{75941}}^1$

素因数の和:75974

約数の個数: 24

約数和(自身を含む): 250152948

約数和(自身を除く): 121812658

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 75941, 151882, 379705, 759410, 987233, 1974466, 4936165, 9872330, 12834029, 25668058, 64170145, 128340290]

約数ペア:

[(1, 128340290), (2, 64170145), (5, 25668058), (10, 12834029), (13, 9872330), (26, 4936165), (65, 1974466), (130, 987233), (169, 759410), (338, 379705), (845, 151882), (1690, 75941)]