2815000

素因数分解:

$2^3\times 5^4\times {\mathrm{563}}^1$

素因数の和:589

約数の個数: 40

約数和(自身を含む): 6607260

約数和(自身を除く): 3792260

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 563, 625, 1000, 1126, 1250, 2252, 2500, 2815, 4504, 5000, 5630, 11260, 14075, 22520, 28150, 56300, 70375, 112600, 140750, 281500, 351875, 563000, 703750, 1407500, 2815000]

約数ペア:

[(1, 2815000), (2, 1407500), (4, 703750), (5, 563000), (8, 351875), (10, 281500), (20, 140750), (25, 112600), (40, 70375), (50, 56300), (100, 28150), (125, 22520), (200, 14075), (250, 11260), (500, 5630), (563, 5000), (625, 4504), (1000, 2815), (1126, 2500), (1250, 2252)]