4089920

素因数分解:

$2^6\times 5^1\times {\mathrm{12781}}^1$

素因数の和:12798

約数の個数: 28

約数和(自身を含む): 9739884

約数和(自身を除く): 5649964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 12781, 25562, 51124, 63905, 102248, 127810, 204496, 255620, 408992, 511240, 817984, 1022480, 2044960, 4089920]

約数ペア:

[(1, 4089920), (2, 2044960), (4, 1022480), (5, 817984), (8, 511240), (10, 408992), (16, 255620), (20, 204496), (32, 127810), (40, 102248), (64, 63905), (80, 51124), (160, 25562), (320, 12781)]