157770280

素因数分解:

$2^3\times 5^1\times {\mathrm{3944257}}^1$

素因数の和:3944268

約数の個数: 16

約数和(自身を含む): 354983220

約数和(自身を除く): 197212940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3944257, 7888514, 15777028, 19721285, 31554056, 39442570, 78885140, 157770280]

約数ペア:

[(1, 157770280), (2, 78885140), (4, 39442570), (5, 31554056), (8, 19721285), (10, 15777028), (20, 7888514), (40, 3944257)]