66405740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{195311}}^1$

素因数の和:195337

約数の個数: 24

約数和(自身を含む): 147655872

約数和(自身を除く): 81250132

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 195311, 390622, 781244, 976555, 1953110, 3320287, 3906220, 6640574, 13281148, 16601435, 33202870, 66405740]

約数ペア:

[(1, 66405740), (2, 33202870), (4, 16601435), (5, 13281148), (10, 6640574), (17, 3906220), (20, 3320287), (34, 1953110), (68, 976555), (85, 781244), (170, 390622), (340, 195311)]