256290190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{151651}}^1$

素因数の和:151684

約数の個数: 24

約数和(自身を含む): 499541688

約数和(自身を除く): 243251498

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 151651, 303302, 758255, 1516510, 1971463, 3942926, 9857315, 19714630, 25629019, 51258038, 128145095, 256290190]

約数ペア:

[(1, 256290190), (2, 128145095), (5, 51258038), (10, 25629019), (13, 19714630), (26, 9857315), (65, 3942926), (130, 1971463), (169, 1516510), (338, 758255), (845, 303302), (1690, 151651)]