28091000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{4013}}^1$

素因数の和:4041

約数の個数: 64

約数和(自身を含む): 75142080

約数和(自身を除く): 47051080

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, 700, 875, 1000, 1400, 1750, 3500, 4013, 7000, 8026, 16052, 20065, 28091, 32104, 40130, 56182, 80260, 100325, 112364, 140455, 160520, 200650, 224728, 280910, 401300, 501625, 561820, 702275, 802600, 1003250, 1123640, 1404550, 2006500, 2809100, 3511375, 4013000, 5618200, 7022750, 14045500, 28091000]

約数ペア:

[(1, 28091000), (2, 14045500), (4, 7022750), (5, 5618200), (7, 4013000), (8, 3511375), (10, 2809100), (14, 2006500), (20, 1404550), (25, 1123640), (28, 1003250), (35, 802600), (40, 702275), (50, 561820), (56, 501625), (70, 401300), (100, 280910), (125, 224728), (140, 200650), (175, 160520), (200, 140455), (250, 112364), (280, 100325), (350, 80260), (500, 56182), (700, 40130), (875, 32104), (1000, 28091), (1400, 20065), (1750, 16052), (3500, 8026), (4013, 7000)]