65385280

素因数分解:

$2^6\times 5^1\times {\mathrm{204329}}^1$

素因数の和:204346

約数の個数: 28

約数和(自身を含む): 155699460

約数和(自身を除く): 90314180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 204329, 408658, 817316, 1021645, 1634632, 2043290, 3269264, 4086580, 6538528, 8173160, 13077056, 16346320, 32692640, 65385280]

約数ペア:

[(1, 65385280), (2, 32692640), (4, 16346320), (5, 13077056), (8, 8173160), (10, 6538528), (16, 4086580), (20, 3269264), (32, 2043290), (40, 1634632), (64, 1021645), (80, 817316), (160, 408658), (320, 204329)]