68705840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1031}}^1$

素因数の和:1075

約数の個数: 120

約数和(自身を含む): 196942752

約数和(自身を除く): 128236912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 170, 196, 238, 245, 272, 280, 340, 392, 476, 490, 560, 595, 680, 784, 833, 952, 980, 1031, 1190, 1360, 1666, 1904, 1960, 2062, 2380, 3332, 3920, 4124, 4165, 4760, 5155, 6664, 7217, 8248, 8330, 9520, 10310, 13328, 14434, 16496, 16660, 17527, 20620, 28868, 33320, 35054, 36085, 41240, 50519, 57736, 66640, 70108, 72170, 82480, 87635, 101038, 115472, 122689, 140216, 144340, 175270, 202076, 245378, 252595, 280432, 288680, 350540, 404152, 490756, 505190, 577360, 613445, 701080, 808304, 858823, 981512, 1010380, 1226890, 1402160, 1717646, 1963024, 2020760, 2453780, 3435292, 4041520, 4294115, 4907560, 6870584, 8588230, 9815120, 13741168, 17176460, 34352920, 68705840]

約数ペア:

[(1, 68705840), (2, 34352920), (4, 17176460), (5, 13741168), (7, 9815120), (8, 8588230), (10, 6870584), (14, 4907560), (16, 4294115), (17, 4041520), (20, 3435292), (28, 2453780), (34, 2020760), (35, 1963024), (40, 1717646), (49, 1402160), (56, 1226890), (68, 1010380), (70, 981512), (80, 858823), (85, 808304), (98, 701080), (112, 613445), (119, 577360), (136, 505190), (140, 490756), (170, 404152), (196, 350540), (238, 288680), (245, 280432), (272, 252595), (280, 245378), (340, 202076), (392, 175270), (476, 144340), (490, 140216), (560, 122689), (595, 115472), (680, 101038), (784, 87635), (833, 82480), (952, 72170), (980, 70108), (1031, 66640), (1190, 57736), (1360, 50519), (1666, 41240), (1904, 36085), (1960, 35054), (2062, 33320), (2380, 28868), (3332, 20620), (3920, 17527), (4124, 16660), (4165, 16496), (4760, 14434), (5155, 13328), (6664, 10310), (7217, 9520), (8248, 8330)]