178890400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 144

約数和(自身を含む): 477719424

約数和(自身を除く): 298829024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 103, 104, 130, 160, 167, 200, 206, 208, 260, 325, 334, 400, 412, 416, 515, 520, 650, 668, 800, 824, 835, 1030, 1040, 1300, 1336, 1339, 1648, 1670, 2060, 2080, 2171, 2575, 2600, 2672, 2678, 3296, 3340, 4120, 4175, 4342, 5150, 5200, 5344, 5356, 6680, 6695, 8240, 8350, 8684, 10300, 10400, 10712, 10855, 13360, 13390, 16480, 16700, 17201, 17368, 20600, 21424, 21710, 26720, 26780, 33400, 33475, 34402, 34736, 41200, 42848, 43420, 53560, 54275, 66800, 66950, 68804, 69472, 82400, 86005, 86840, 107120, 108550, 133600, 133900, 137608, 172010, 173680, 214240, 217100, 223613, 267800, 275216, 344020, 347360, 430025, 434200, 447226, 535600, 550432, 688040, 860050, 868400, 894452, 1071200, 1118065, 1376080, 1720100, 1736800, 1788904, 2236130, 2752160, 3440200, 3577808, 4472260, 5590325, 6880400, 7155616, 8944520, 11180650, 13760800, 17889040, 22361300, 35778080, 44722600, 89445200, 178890400]

約数ペア:

[(1, 178890400), (2, 89445200), (4, 44722600), (5, 35778080), (8, 22361300), (10, 17889040), (13, 13760800), (16, 11180650), (20, 8944520), (25, 7155616), (26, 6880400), (32, 5590325), (40, 4472260), (50, 3577808), (52, 3440200), (65, 2752160), (80, 2236130), (100, 1788904), (103, 1736800), (104, 1720100), (130, 1376080), (160, 1118065), (167, 1071200), (200, 894452), (206, 868400), (208, 860050), (260, 688040), (325, 550432), (334, 535600), (400, 447226), (412, 434200), (416, 430025), (515, 347360), (520, 344020), (650, 275216), (668, 267800), (800, 223613), (824, 217100), (835, 214240), (1030, 173680), (1040, 172010), (1300, 137608), (1336, 133900), (1339, 133600), (1648, 108550), (1670, 107120), (2060, 86840), (2080, 86005), (2171, 82400), (2575, 69472), (2600, 68804), (2672, 66950), (2678, 66800), (3296, 54275), (3340, 53560), (4120, 43420), (4175, 42848), (4342, 41200), (5150, 34736), (5200, 34402), (5344, 33475), (5356, 33400), (6680, 26780), (6695, 26720), (8240, 21710), (8350, 21424), (8684, 20600), (10300, 17368), (10400, 17201), (10712, 16700), (10855, 16480), (13360, 13390)]