135920420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{158047}}^1$

素因数の和:158099

約数の個数: 24

約数和(自身を含む): 292072704

約数和(自身を除く): 156152284

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 158047, 316094, 632188, 790235, 1580470, 3160940, 6796021, 13592042, 27184084, 33980105, 67960210, 135920420]

約数ペア:

[(1, 135920420), (2, 67960210), (4, 33980105), (5, 27184084), (10, 13592042), (20, 6796021), (43, 3160940), (86, 1580470), (172, 790235), (215, 632188), (430, 316094), (860, 158047)]