72810080

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:317

約数の個数: 144

約数和(自身を含む): 206324496

約数和(自身を除く): 133514416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 70, 74, 80, 98, 112, 140, 148, 160, 185, 196, 224, 245, 251, 259, 280, 296, 370, 392, 490, 502, 518, 560, 592, 740, 784, 980, 1004, 1036, 1120, 1184, 1255, 1295, 1480, 1568, 1757, 1813, 1960, 2008, 2072, 2510, 2590, 2960, 3514, 3626, 3920, 4016, 4144, 5020, 5180, 5920, 7028, 7252, 7840, 8032, 8288, 8785, 9065, 9287, 10040, 10360, 12299, 14056, 14504, 17570, 18130, 18574, 20080, 20720, 24598, 28112, 29008, 35140, 36260, 37148, 40160, 41440, 46435, 49196, 56224, 58016, 61495, 65009, 70280, 72520, 74296, 92870, 98392, 122990, 130018, 140560, 145040, 148592, 185740, 196784, 245980, 260036, 281120, 290080, 297184, 325045, 371480, 393568, 455063, 491960, 520072, 650090, 742960, 910126, 983920, 1040144, 1300180, 1485920, 1820252, 1967840, 2080288, 2275315, 2600360, 3640504, 4550630, 5200720, 7281008, 9101260, 10401440, 14562016, 18202520, 36405040, 72810080]

約数ペア:

[(1, 72810080), (2, 36405040), (4, 18202520), (5, 14562016), (7, 10401440), (8, 9101260), (10, 7281008), (14, 5200720), (16, 4550630), (20, 3640504), (28, 2600360), (32, 2275315), (35, 2080288), (37, 1967840), (40, 1820252), (49, 1485920), (56, 1300180), (70, 1040144), (74, 983920), (80, 910126), (98, 742960), (112, 650090), (140, 520072), (148, 491960), (160, 455063), (185, 393568), (196, 371480), (224, 325045), (245, 297184), (251, 290080), (259, 281120), (280, 260036), (296, 245980), (370, 196784), (392, 185740), (490, 148592), (502, 145040), (518, 140560), (560, 130018), (592, 122990), (740, 98392), (784, 92870), (980, 74296), (1004, 72520), (1036, 70280), (1120, 65009), (1184, 61495), (1255, 58016), (1295, 56224), (1480, 49196), (1568, 46435), (1757, 41440), (1813, 40160), (1960, 37148), (2008, 36260), (2072, 35140), (2510, 29008), (2590, 28112), (2960, 24598), (3514, 20720), (3626, 20080), (3920, 18574), (4016, 18130), (4144, 17570), (5020, 14504), (5180, 14056), (5920, 12299), (7028, 10360), (7252, 10040), (7840, 9287), (8032, 9065), (8288, 8785)]