49750000

素因数分解:

$2^4\times 5^6\times {\mathrm{199}}^1$

素因数の和:237

約数の個数: 70

約数和(自身を含む): 121092200

約数和(自身を除く): 71342200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 199, 200, 250, 398, 400, 500, 625, 796, 995, 1000, 1250, 1592, 1990, 2000, 2500, 3125, 3184, 3980, 4975, 5000, 6250, 7960, 9950, 10000, 12500, 15625, 15920, 19900, 24875, 25000, 31250, 39800, 49750, 50000, 62500, 79600, 99500, 124375, 125000, 199000, 248750, 250000, 398000, 497500, 621875, 995000, 1243750, 1990000, 2487500, 3109375, 4975000, 6218750, 9950000, 12437500, 24875000, 49750000]

約数ペア:

[(1, 49750000), (2, 24875000), (4, 12437500), (5, 9950000), (8, 6218750), (10, 4975000), (16, 3109375), (20, 2487500), (25, 1990000), (40, 1243750), (50, 995000), (80, 621875), (100, 497500), (125, 398000), (199, 250000), (200, 248750), (250, 199000), (398, 125000), (400, 124375), (500, 99500), (625, 79600), (796, 62500), (995, 50000), (1000, 49750), (1250, 39800), (1592, 31250), (1990, 25000), (2000, 24875), (2500, 19900), (3125, 15920), (3184, 15625), (3980, 12500), (4975, 10000), (5000, 9950), (6250, 7960)]