155287120

素因数分解:

$2^4\times 5^1\times {\mathrm{1941089}}^1$

素因数の和:1941102

約数の個数: 20

約数和(自身を含む): 361042740

約数和(自身を除く): 205755620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1941089, 3882178, 7764356, 9705445, 15528712, 19410890, 31057424, 38821780, 77643560, 155287120]

約数ペア:

[(1, 155287120), (2, 77643560), (4, 38821780), (5, 31057424), (8, 19410890), (10, 15528712), (16, 9705445), (20, 7764356), (40, 3882178), (80, 1941089)]