19874000

素因数分解:

$2^4\times 5^3\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:565

約数の個数: 80

約数和(自身を含む): 50681280

約数和(自身を除く): 30807280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 125, 152, 190, 200, 250, 304, 380, 400, 475, 500, 523, 760, 950, 1000, 1046, 1520, 1900, 2000, 2092, 2375, 2615, 3800, 4184, 4750, 5230, 7600, 8368, 9500, 9937, 10460, 13075, 19000, 19874, 20920, 26150, 38000, 39748, 41840, 49685, 52300, 65375, 79496, 99370, 104600, 130750, 158992, 198740, 209200, 248425, 261500, 397480, 496850, 523000, 794960, 993700, 1046000, 1242125, 1987400, 2484250, 3974800, 4968500, 9937000, 19874000]

約数ペア:

[(1, 19874000), (2, 9937000), (4, 4968500), (5, 3974800), (8, 2484250), (10, 1987400), (16, 1242125), (19, 1046000), (20, 993700), (25, 794960), (38, 523000), (40, 496850), (50, 397480), (76, 261500), (80, 248425), (95, 209200), (100, 198740), (125, 158992), (152, 130750), (190, 104600), (200, 99370), (250, 79496), (304, 65375), (380, 52300), (400, 49685), (475, 41840), (500, 39748), (523, 38000), (760, 26150), (950, 20920), (1000, 19874), (1046, 19000), (1520, 13075), (1900, 10460), (2000, 9937), (2092, 9500), (2375, 8368), (2615, 7600), (3800, 5230), (4184, 4750)]