28315000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{809}}^1$

素因数の和:842

約数の個数: 80

約数和(自身を含む): 75913200

約数和(自身を除く): 47598200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 625, 700, 809, 875, 1000, 1250, 1400, 1618, 1750, 2500, 3236, 3500, 4045, 4375, 5000, 5663, 6472, 7000, 8090, 8750, 11326, 16180, 17500, 20225, 22652, 28315, 32360, 35000, 40450, 45304, 56630, 80900, 101125, 113260, 141575, 161800, 202250, 226520, 283150, 404500, 505625, 566300, 707875, 809000, 1011250, 1132600, 1415750, 2022500, 2831500, 3539375, 4045000, 5663000, 7078750, 14157500, 28315000]

約数ペア:

[(1, 28315000), (2, 14157500), (4, 7078750), (5, 5663000), (7, 4045000), (8, 3539375), (10, 2831500), (14, 2022500), (20, 1415750), (25, 1132600), (28, 1011250), (35, 809000), (40, 707875), (50, 566300), (56, 505625), (70, 404500), (100, 283150), (125, 226520), (140, 202250), (175, 161800), (200, 141575), (250, 113260), (280, 101125), (350, 80900), (500, 56630), (625, 45304), (700, 40450), (809, 35000), (875, 32360), (1000, 28315), (1250, 22652), (1400, 20225), (1618, 17500), (1750, 16180), (2500, 11326), (3236, 8750), (3500, 8090), (4045, 7000), (4375, 6472), (5000, 5663)]