2198000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{157}}^1$

素因数の和:187

約数の個数: 80

約数和(自身を含む): 6112704

約数和(自身を除く): 3914704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 157, 175, 200, 250, 280, 314, 350, 400, 500, 560, 628, 700, 785, 875, 1000, 1099, 1256, 1400, 1570, 1750, 2000, 2198, 2512, 2800, 3140, 3500, 3925, 4396, 5495, 6280, 7000, 7850, 8792, 10990, 12560, 14000, 15700, 17584, 19625, 21980, 27475, 31400, 39250, 43960, 54950, 62800, 78500, 87920, 109900, 137375, 157000, 219800, 274750, 314000, 439600, 549500, 1099000, 2198000]

約数ペア:

[(1, 2198000), (2, 1099000), (4, 549500), (5, 439600), (7, 314000), (8, 274750), (10, 219800), (14, 157000), (16, 137375), (20, 109900), (25, 87920), (28, 78500), (35, 62800), (40, 54950), (50, 43960), (56, 39250), (70, 31400), (80, 27475), (100, 21980), (112, 19625), (125, 17584), (140, 15700), (157, 14000), (175, 12560), (200, 10990), (250, 8792), (280, 7850), (314, 7000), (350, 6280), (400, 5495), (500, 4396), (560, 3925), (628, 3500), (700, 3140), (785, 2800), (875, 2512), (1000, 2198), (1099, 2000), (1256, 1750), (1400, 1570)]