64824560

素因数分解:

$2^4\times 5^1\times {\mathrm{810307}}^1$

素因数の和:810320

約数の個数: 20

約数和(自身を含む): 150717288

約数和(自身を除く): 85892728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 810307, 1620614, 3241228, 4051535, 6482456, 8103070, 12964912, 16206140, 32412280, 64824560]

約数ペア:

[(1, 64824560), (2, 32412280), (4, 16206140), (5, 12964912), (8, 8103070), (10, 6482456), (16, 4051535), (20, 3241228), (40, 1620614), (80, 810307)]