123256660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{1811}}^1$

素因数の和:1944

約数の個数: 48

約数和(自身を含む): 268494912

約数和(自身を除く): 145238252

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 332, 410, 415, 820, 830, 1660, 1811, 3403, 3622, 6806, 7244, 9055, 13612, 17015, 18110, 34030, 36220, 68060, 74251, 148502, 150313, 297004, 300626, 371255, 601252, 742510, 751565, 1485020, 1503130, 3006260, 6162833, 12325666, 24651332, 30814165, 61628330, 123256660]

約数ペア:

[(1, 123256660), (2, 61628330), (4, 30814165), (5, 24651332), (10, 12325666), (20, 6162833), (41, 3006260), (82, 1503130), (83, 1485020), (164, 751565), (166, 742510), (205, 601252), (332, 371255), (410, 300626), (415, 297004), (820, 150313), (830, 148502), (1660, 74251), (1811, 68060), (3403, 36220), (3622, 34030), (6806, 18110), (7244, 17015), (9055, 13612)]