20298590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12011}}^1$

素因数の和:12044

約数の個数: 24

約数和(自身を含む): 39567528

約数和(自身を除く): 19268938

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12011, 24022, 60055, 120110, 156143, 312286, 780715, 1561430, 2029859, 4059718, 10149295, 20298590]

約数ペア:

[(1, 20298590), (2, 10149295), (5, 4059718), (10, 2029859), (13, 1561430), (26, 780715), (65, 312286), (130, 156143), (169, 120110), (338, 60055), (845, 24022), (1690, 12011)]