31840000

素因数分解:

$2^8\times 5^4\times {\mathrm{199}}^1$

素因数の和:235

約数の個数: 90

約数和(自身を含む): 79818200

約数和(自身を除く): 47978200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 199, 200, 250, 256, 320, 398, 400, 500, 625, 640, 796, 800, 995, 1000, 1250, 1280, 1592, 1600, 1990, 2000, 2500, 3184, 3200, 3980, 4000, 4975, 5000, 6368, 6400, 7960, 8000, 9950, 10000, 12736, 15920, 16000, 19900, 20000, 24875, 25472, 31840, 32000, 39800, 40000, 49750, 50944, 63680, 79600, 80000, 99500, 124375, 127360, 159200, 160000, 199000, 248750, 254720, 318400, 398000, 497500, 636800, 796000, 995000, 1273600, 1592000, 1990000, 3184000, 3980000, 6368000, 7960000, 15920000, 31840000]

約数ペア:

[(1, 31840000), (2, 15920000), (4, 7960000), (5, 6368000), (8, 3980000), (10, 3184000), (16, 1990000), (20, 1592000), (25, 1273600), (32, 995000), (40, 796000), (50, 636800), (64, 497500), (80, 398000), (100, 318400), (125, 254720), (128, 248750), (160, 199000), (199, 160000), (200, 159200), (250, 127360), (256, 124375), (320, 99500), (398, 80000), (400, 79600), (500, 63680), (625, 50944), (640, 49750), (796, 40000), (800, 39800), (995, 32000), (1000, 31840), (1250, 25472), (1280, 24875), (1592, 20000), (1600, 19900), (1990, 16000), (2000, 15920), (2500, 12736), (3184, 10000), (3200, 9950), (3980, 8000), (4000, 7960), (4975, 6400), (5000, 6368)]