71264720

素因数分解:

$2^4\times 5^1\times {\mathrm{890809}}^1$

素因数の和:890822

約数の個数: 20

約数和(自身を含む): 165690660

約数和(自身を除く): 94425940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 890809, 1781618, 3563236, 4454045, 7126472, 8908090, 14252944, 17816180, 35632360, 71264720]

約数ペア:

[(1, 71264720), (2, 35632360), (4, 17816180), (5, 14252944), (8, 8908090), (10, 7126472), (16, 4454045), (20, 3563236), (40, 1781618), (80, 890809)]