64737580

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{24709}}^1$

素因数の和:24849

約数の個数: 24

約数和(自身を含む): 136992240

約数和(自身を除く): 72254660

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 24709, 49418, 98836, 123545, 247090, 494180, 3236879, 6473758, 12947516, 16184395, 32368790, 64737580]

約数ペア:

[(1, 64737580), (2, 32368790), (4, 16184395), (5, 12947516), (10, 6473758), (20, 3236879), (131, 494180), (262, 247090), (524, 123545), (655, 98836), (1310, 49418), (2620, 24709)]