18010996480

素因数分解:

$2^8\times 5^1\times {\mathrm{199}}^1\times {\mathrm{70709}}^1$

素因数の和:70929

約数の個数: 72

約数和(自身を含む): 43359372000

約数和(自身を除く): 25348375520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 256, 320, 398, 640, 796, 995, 1280, 1592, 1990, 3184, 3980, 6368, 7960, 12736, 15920, 25472, 31840, 50944, 63680, 70709, 127360, 141418, 254720, 282836, 353545, 565672, 707090, 1131344, 1414180, 2262688, 2828360, 4525376, 5656720, 9050752, 11313440, 14071091, 18101504, 22626880, 28142182, 45253760, 56284364, 70355455, 90507520, 112568728, 140710910, 225137456, 281421820, 450274912, 562843640, 900549824, 1125687280, 1801099648, 2251374560, 3602199296, 4502749120, 9005498240, 18010996480]

約数ペア:

[(1, 18010996480), (2, 9005498240), (4, 4502749120), (5, 3602199296), (8, 2251374560), (10, 1801099648), (16, 1125687280), (20, 900549824), (32, 562843640), (40, 450274912), (64, 281421820), (80, 225137456), (128, 140710910), (160, 112568728), (199, 90507520), (256, 70355455), (320, 56284364), (398, 45253760), (640, 28142182), (796, 22626880), (995, 18101504), (1280, 14071091), (1592, 11313440), (1990, 9050752), (3184, 5656720), (3980, 4525376), (6368, 2828360), (7960, 2262688), (12736, 1414180), (15920, 1131344), (25472, 707090), (31840, 565672), (50944, 353545), (63680, 282836), (70709, 254720), (127360, 141418)]