65328580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79669}}^1$

素因数の和:79719

約数の個数: 24

約数和(自身を含む): 140537880

約数和(自身を除く): 75209300

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 79669, 159338, 318676, 398345, 796690, 1593380, 3266429, 6532858, 13065716, 16332145, 32664290, 65328580]

約数ペア:

[(1, 65328580), (2, 32664290), (4, 16332145), (5, 13065716), (10, 6532858), (20, 3266429), (41, 1593380), (82, 796690), (164, 398345), (205, 318676), (410, 159338), (820, 79669)]