63680000

素因数分解:

$2^9\times 5^4\times {\mathrm{199}}^1$

素因数の和:237

約数の個数: 100

約数和(自身を含む): 159792600

約数和(自身を除く): 96112600

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, 512, 625, 640, 796, 800, 995, 1000, 1250, 1280, 1592, 1600, 1990, 2000, 2500, 2560, 3184, 3200, 3980, 4000, 4975, 5000, 6368, 6400, 7960, 8000, 9950, 10000, 12736, 12800, 15920, 16000, 19900, 20000, 24875, 25472, 31840, 32000, 39800, 40000, 49750, 50944, 63680, 64000, 79600, 80000, 99500, 101888, 124375, 127360, 159200, 160000, 199000, 248750, 254720, 318400, 320000, 398000, 497500, 509440, 636800, 796000, 995000, 1273600, 1592000, 1990000, 2547200, 3184000, 3980000, 6368000, 7960000, 12736000, 15920000, 31840000, 63680000]

約数ペア:

[(1, 63680000), (2, 31840000), (4, 15920000), (5, 12736000), (8, 7960000), (10, 6368000), (16, 3980000), (20, 3184000), (25, 2547200), (32, 1990000), (40, 1592000), (50, 1273600), (64, 995000), (80, 796000), (100, 636800), (125, 509440), (128, 497500), (160, 398000), (199, 320000), (200, 318400), (250, 254720), (256, 248750), (320, 199000), (398, 160000), (400, 159200), (500, 127360), (512, 124375), (625, 101888), (640, 99500), (796, 80000), (800, 79600), (995, 64000), (1000, 63680), (1250, 50944), (1280, 49750), (1592, 40000), (1600, 39800), (1990, 32000), (2000, 31840), (2500, 25472), (2560, 24875), (3184, 20000), (3200, 19900), (3980, 16000), (4000, 15920), (4975, 12800), (5000, 12736), (6368, 10000), (6400, 9950), (7960, 8000)]