78410120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115309}}^1$

素因数の和:115337

約数の個数: 32

約数和(自身を含む): 186802200

約数和(自身を除く): 108392080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115309, 230618, 461236, 576545, 922472, 1153090, 1960253, 2306180, 3920506, 4612360, 7841012, 9801265, 15682024, 19602530, 39205060, 78410120]

約数ペア:

[(1, 78410120), (2, 39205060), (4, 19602530), (5, 15682024), (8, 9801265), (10, 7841012), (17, 4612360), (20, 3920506), (34, 2306180), (40, 1960253), (68, 1153090), (85, 922472), (136, 576545), (170, 461236), (340, 230618), (680, 115309)]