20905060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{569}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 27357980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 167, 220, 334, 569, 668, 835, 1138, 1670, 1837, 2276, 2845, 3340, 3674, 5690, 6259, 7348, 9185, 11380, 12518, 18370, 25036, 31295, 36740, 62590, 95023, 125180, 190046, 380092, 475115, 950230, 1045253, 1900460, 2090506, 4181012, 5226265, 10452530, 20905060]

約数ペア:

[(1, 20905060), (2, 10452530), (4, 5226265), (5, 4181012), (10, 2090506), (11, 1900460), (20, 1045253), (22, 950230), (44, 475115), (55, 380092), (110, 190046), (167, 125180), (220, 95023), (334, 62590), (569, 36740), (668, 31295), (835, 25036), (1138, 18370), (1670, 12518), (1837, 11380), (2276, 9185), (2845, 7348), (3340, 6259), (3674, 5690)]