81905600

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:203

約数の個数: 168

約数和(自身を含む): 235842048

約数和(自身を除く): 153936448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 71, 80, 100, 103, 112, 140, 142, 160, 175, 200, 206, 224, 280, 284, 320, 350, 355, 400, 412, 448, 497, 515, 560, 568, 700, 710, 721, 800, 824, 994, 1030, 1120, 1136, 1400, 1420, 1442, 1600, 1648, 1775, 1988, 2060, 2240, 2272, 2485, 2575, 2800, 2840, 2884, 3296, 3550, 3605, 3976, 4120, 4544, 4970, 5150, 5600, 5680, 5768, 6592, 7100, 7210, 7313, 7952, 8240, 9940, 10300, 11200, 11360, 11536, 12425, 14200, 14420, 14626, 15904, 16480, 18025, 19880, 20600, 22720, 23072, 24850, 28400, 28840, 29252, 31808, 32960, 36050, 36565, 39760, 41200, 46144, 49700, 51191, 56800, 57680, 58504, 72100, 73130, 79520, 82400, 99400, 102382, 113600, 115360, 117008, 144200, 146260, 159040, 164800, 182825, 198800, 204764, 230720, 234016, 255955, 288400, 292520, 365650, 397600, 409528, 468032, 511910, 576800, 585040, 731300, 795200, 819056, 1023820, 1153600, 1170080, 1279775, 1462600, 1638112, 2047640, 2340160, 2559550, 2925200, 3276224, 4095280, 5119100, 5850400, 8190560, 10238200, 11700800, 16381120, 20476400, 40952800, 81905600]

約数ペア:

[(1, 81905600), (2, 40952800), (4, 20476400), (5, 16381120), (7, 11700800), (8, 10238200), (10, 8190560), (14, 5850400), (16, 5119100), (20, 4095280), (25, 3276224), (28, 2925200), (32, 2559550), (35, 2340160), (40, 2047640), (50, 1638112), (56, 1462600), (64, 1279775), (70, 1170080), (71, 1153600), (80, 1023820), (100, 819056), (103, 795200), (112, 731300), (140, 585040), (142, 576800), (160, 511910), (175, 468032), (200, 409528), (206, 397600), (224, 365650), (280, 292520), (284, 288400), (320, 255955), (350, 234016), (355, 230720), (400, 204764), (412, 198800), (448, 182825), (497, 164800), (515, 159040), (560, 146260), (568, 144200), (700, 117008), (710, 115360), (721, 113600), (800, 102382), (824, 99400), (994, 82400), (1030, 79520), (1120, 73130), (1136, 72100), (1400, 58504), (1420, 57680), (1442, 56800), (1600, 51191), (1648, 49700), (1775, 46144), (1988, 41200), (2060, 39760), (2240, 36565), (2272, 36050), (2485, 32960), (2575, 31808), (2800, 29252), (2840, 28840), (2884, 28400), (3296, 24850), (3550, 23072), (3605, 22720), (3976, 20600), (4120, 19880), (4544, 18025), (4970, 16480), (5150, 15904), (5600, 14626), (5680, 14420), (5768, 14200), (6592, 12425), (7100, 11536), (7210, 11360), (7313, 11200), (7952, 10300), (8240, 9940)]