12680000

素因数分解:

$2^6\times 5^4\times {\mathrm{317}}^1$

素因数の和:349

約数の個数: 70

約数和(自身を含む): 31541466

約数和(自身を除く): 18861466

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 317, 320, 400, 500, 625, 634, 800, 1000, 1250, 1268, 1585, 1600, 2000, 2500, 2536, 3170, 4000, 5000, 5072, 6340, 7925, 8000, 10000, 10144, 12680, 15850, 20000, 20288, 25360, 31700, 39625, 40000, 50720, 63400, 79250, 101440, 126800, 158500, 198125, 253600, 317000, 396250, 507200, 634000, 792500, 1268000, 1585000, 2536000, 3170000, 6340000, 12680000]

約数ペア:

[(1, 12680000), (2, 6340000), (4, 3170000), (5, 2536000), (8, 1585000), (10, 1268000), (16, 792500), (20, 634000), (25, 507200), (32, 396250), (40, 317000), (50, 253600), (64, 198125), (80, 158500), (100, 126800), (125, 101440), (160, 79250), (200, 63400), (250, 50720), (317, 40000), (320, 39625), (400, 31700), (500, 25360), (625, 20288), (634, 20000), (800, 15850), (1000, 12680), (1250, 10144), (1268, 10000), (1585, 8000), (1600, 7925), (2000, 6340), (2500, 5072), (2536, 5000), (3170, 4000)]