1987400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 4873200

約数和(自身を除く): 2885800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 523, 760, 950, 1046, 1900, 2092, 2615, 3800, 4184, 5230, 9937, 10460, 13075, 19874, 20920, 26150, 39748, 49685, 52300, 79496, 99370, 104600, 198740, 248425, 397480, 496850, 993700, 1987400]

約数ペア:

[(1, 1987400), (2, 993700), (4, 496850), (5, 397480), (8, 248425), (10, 198740), (19, 104600), (20, 99370), (25, 79496), (38, 52300), (40, 49685), (50, 39748), (76, 26150), (95, 20920), (100, 19874), (152, 13075), (190, 10460), (200, 9937), (380, 5230), (475, 4184), (523, 3800), (760, 2615), (950, 2092), (1046, 1900)]