8198000

素因数分解:

$2^4\times 5^3\times {\mathrm{4099}}^1$

素因数の和:4122

約数の個数: 40

約数和(自身を含む): 19827600

約数和(自身を除く): 11629600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 4099, 8198, 16396, 20495, 32792, 40990, 65584, 81980, 102475, 163960, 204950, 327920, 409900, 512375, 819800, 1024750, 1639600, 2049500, 4099000, 8198000]

約数ペア:

[(1, 8198000), (2, 4099000), (4, 2049500), (5, 1639600), (8, 1024750), (10, 819800), (16, 512375), (20, 409900), (25, 327920), (40, 204950), (50, 163960), (80, 102475), (100, 81980), (125, 65584), (200, 40990), (250, 32792), (400, 20495), (500, 16396), (1000, 8198), (2000, 4099)]