280785000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{18719}}^1$

素因数の和:18748

約数の個数: 80

約数和(自身を含む): 877219200

約数和(自身を除く): 596434200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 625, 750, 1000, 1250, 1500, 1875, 2500, 3000, 3750, 5000, 7500, 15000, 18719, 37438, 56157, 74876, 93595, 112314, 149752, 187190, 224628, 280785, 374380, 449256, 467975, 561570, 748760, 935950, 1123140, 1403925, 1871900, 2246280, 2339875, 2807850, 3743800, 4679750, 5615700, 7019625, 9359500, 11231400, 11699375, 14039250, 18719000, 23398750, 28078500, 35098125, 46797500, 56157000, 70196250, 93595000, 140392500, 280785000]

約数ペア:

[(1, 280785000), (2, 140392500), (3, 93595000), (4, 70196250), (5, 56157000), (6, 46797500), (8, 35098125), (10, 28078500), (12, 23398750), (15, 18719000), (20, 14039250), (24, 11699375), (25, 11231400), (30, 9359500), (40, 7019625), (50, 5615700), (60, 4679750), (75, 3743800), (100, 2807850), (120, 2339875), (125, 2246280), (150, 1871900), (200, 1403925), (250, 1123140), (300, 935950), (375, 748760), (500, 561570), (600, 467975), (625, 449256), (750, 374380), (1000, 280785), (1250, 224628), (1500, 187190), (1875, 149752), (2500, 112314), (3000, 93595), (3750, 74876), (5000, 56157), (7500, 37438), (15000, 18719)]