199979080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 536256000

約数和(自身を除く): 336276920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 97, 140, 148, 185, 194, 199, 259, 280, 296, 370, 388, 398, 485, 518, 679, 740, 776, 796, 970, 995, 1036, 1295, 1358, 1393, 1480, 1592, 1940, 1990, 2072, 2590, 2716, 2786, 3395, 3589, 3880, 3980, 5180, 5432, 5572, 6790, 6965, 7178, 7363, 7960, 10360, 11144, 13580, 13930, 14356, 14726, 17945, 19303, 25123, 27160, 27860, 28712, 29452, 35890, 36815, 38606, 50246, 51541, 55720, 58904, 71780, 73630, 77212, 96515, 100492, 103082, 125615, 135121, 143560, 147260, 154424, 193030, 200984, 206164, 251230, 257705, 270242, 294520, 386060, 412328, 502460, 515410, 540484, 675605, 714211, 772120, 1004920, 1030820, 1080968, 1351210, 1428422, 2061640, 2702420, 2856844, 3571055, 4999477, 5404840, 5713688, 7142110, 9998954, 14284220, 19997908, 24997385, 28568440, 39995816, 49994770, 99989540, 199979080]

約数ペア:

[(1, 199979080), (2, 99989540), (4, 49994770), (5, 39995816), (7, 28568440), (8, 24997385), (10, 19997908), (14, 14284220), (20, 9998954), (28, 7142110), (35, 5713688), (37, 5404840), (40, 4999477), (56, 3571055), (70, 2856844), (74, 2702420), (97, 2061640), (140, 1428422), (148, 1351210), (185, 1080968), (194, 1030820), (199, 1004920), (259, 772120), (280, 714211), (296, 675605), (370, 540484), (388, 515410), (398, 502460), (485, 412328), (518, 386060), (679, 294520), (740, 270242), (776, 257705), (796, 251230), (970, 206164), (995, 200984), (1036, 193030), (1295, 154424), (1358, 147260), (1393, 143560), (1480, 135121), (1592, 125615), (1940, 103082), (1990, 100492), (2072, 96515), (2590, 77212), (2716, 73630), (2786, 71780), (3395, 58904), (3589, 55720), (3880, 51541), (3980, 50246), (5180, 38606), (5432, 36815), (5572, 35890), (6790, 29452), (6965, 28712), (7178, 27860), (7363, 27160), (7960, 25123), (10360, 19303), (11144, 17945), (13580, 14726), (13930, 14356)]