634000

素因数分解:

$2^4\times 5^3\times {\mathrm{317}}^1$

素因数の和:340

約数の個数: 40

約数和(自身を含む): 1537848

約数和(自身を除く): 903848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 317, 400, 500, 634, 1000, 1268, 1585, 2000, 2536, 3170, 5072, 6340, 7925, 12680, 15850, 25360, 31700, 39625, 63400, 79250, 126800, 158500, 317000, 634000]

約数ペア:

[(1, 634000), (2, 317000), (4, 158500), (5, 126800), (8, 79250), (10, 63400), (16, 39625), (20, 31700), (25, 25360), (40, 15850), (50, 12680), (80, 7925), (100, 6340), (125, 5072), (200, 3170), (250, 2536), (317, 2000), (400, 1585), (500, 1268), (634, 1000)]