78748000

素因数分解:

$2^5\times 5^3\times {\mathrm{19687}}^1$

素因数の和:19712

約数の個数: 48

約数和(自身を含む): 193493664

約数和(自身を除く): 114745664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 19687, 39374, 78748, 98435, 157496, 196870, 314992, 393740, 492175, 629984, 787480, 984350, 1574960, 1968700, 2460875, 3149920, 3937400, 4921750, 7874800, 9843500, 15749600, 19687000, 39374000, 78748000]

約数ペア:

[(1, 78748000), (2, 39374000), (4, 19687000), (5, 15749600), (8, 9843500), (10, 7874800), (16, 4921750), (20, 3937400), (25, 3149920), (32, 2460875), (40, 1968700), (50, 1574960), (80, 984350), (100, 787480), (125, 629984), (160, 492175), (200, 393740), (250, 314992), (400, 196870), (500, 157496), (800, 98435), (1000, 78748), (2000, 39374), (4000, 19687)]