20197026400

素因数分解:

$2^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{587}}^1\times {\mathrm{1049}}^1$

素因数の和:1697

約数の個数: 144

約数和(自身を含む): 50642852400

約数和(自身を除く): 30445826000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 80, 82, 100, 160, 164, 200, 205, 328, 400, 410, 587, 656, 800, 820, 1025, 1049, 1174, 1312, 1640, 2050, 2098, 2348, 2935, 3280, 4100, 4196, 4696, 5245, 5870, 6560, 8200, 8392, 9392, 10490, 11740, 14675, 16400, 16784, 18784, 20980, 23480, 24067, 26225, 29350, 32800, 33568, 41960, 43009, 46960, 48134, 52450, 58700, 83920, 86018, 93920, 96268, 104900, 117400, 120335, 167840, 172036, 192536, 209800, 215045, 234800, 240670, 344072, 385072, 419600, 430090, 469600, 481340, 601675, 615763, 688144, 770144, 839200, 860180, 962680, 1075225, 1203350, 1231526, 1376288, 1720360, 1925360, 2150450, 2406700, 2463052, 3078815, 3440720, 3850720, 4300900, 4813400, 4926104, 6157630, 6881440, 8601800, 9626800, 9852208, 12315260, 15394075, 17203600, 19253600, 19704416, 24630520, 25246283, 30788150, 34407200, 49261040, 50492566, 61576300, 98522080, 100985132, 123152600, 126231415, 201970264, 246305200, 252462830, 403940528, 492610400, 504925660, 631157075, 807881056, 1009851320, 1262314150, 2019702640, 2524628300, 4039405280, 5049256600, 10098513200, 20197026400]

約数ペア:

[(1, 20197026400), (2, 10098513200), (4, 5049256600), (5, 4039405280), (8, 2524628300), (10, 2019702640), (16, 1262314150), (20, 1009851320), (25, 807881056), (32, 631157075), (40, 504925660), (41, 492610400), (50, 403940528), (80, 252462830), (82, 246305200), (100, 201970264), (160, 126231415), (164, 123152600), (200, 100985132), (205, 98522080), (328, 61576300), (400, 50492566), (410, 49261040), (587, 34407200), (656, 30788150), (800, 25246283), (820, 24630520), (1025, 19704416), (1049, 19253600), (1174, 17203600), (1312, 15394075), (1640, 12315260), (2050, 9852208), (2098, 9626800), (2348, 8601800), (2935, 6881440), (3280, 6157630), (4100, 4926104), (4196, 4813400), (4696, 4300900), (5245, 3850720), (5870, 3440720), (6560, 3078815), (8200, 2463052), (8392, 2406700), (9392, 2150450), (10490, 1925360), (11740, 1720360), (14675, 1376288), (16400, 1231526), (16784, 1203350), (18784, 1075225), (20980, 962680), (23480, 860180), (24067, 839200), (26225, 770144), (29350, 688144), (32800, 615763), (33568, 601675), (41960, 481340), (43009, 469600), (46960, 430090), (48134, 419600), (52450, 385072), (58700, 344072), (83920, 240670), (86018, 234800), (93920, 215045), (96268, 209800), (104900, 192536), (117400, 172036), (120335, 167840)]