64822480

素因数分解:

$2^4\times 5^1\times {\mathrm{810281}}^1$

素因数の和:810294

約数の個数: 20

約数和(自身を含む): 150712452

約数和(自身を除く): 85889972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 810281, 1620562, 3241124, 4051405, 6482248, 8102810, 12964496, 16205620, 32411240, 64822480]

約数ペア:

[(1, 64822480), (2, 32411240), (4, 16205620), (5, 12964496), (8, 8102810), (10, 6482248), (16, 4051405), (20, 3241124), (40, 1620562), (80, 810281)]