64840720

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:190

約数の個数: 160

約数和(自身を含む): 187488000

約数和(自身を除く): 122647280

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, 139, 140, 170, 196, 238, 245, 272, 278, 280, 340, 343, 392, 476, 490, 556, 560, 595, 680, 686, 695, 784, 833, 952, 973, 980, 1112, 1190, 1360, 1372, 1390, 1666, 1715, 1904, 1946, 1960, 2224, 2363, 2380, 2744, 2780, 3332, 3430, 3892, 3920, 4165, 4726, 4760, 4865, 5488, 5560, 5831, 6664, 6811, 6860, 7784, 8330, 9452, 9520, 9730, 11120, 11662, 11815, 13328, 13622, 13720, 15568, 16541, 16660, 18904, 19460, 23324, 23630, 27244, 27440, 29155, 33082, 33320, 34055, 37808, 38920, 46648, 47260, 47677, 54488, 58310, 66164, 66640, 68110, 77840, 82705, 93296, 94520, 95354, 108976, 115787, 116620, 132328, 136220, 165410, 189040, 190708, 231574, 233240, 238385, 264656, 272440, 330820, 381416, 463148, 466480, 476770, 544880, 578935, 661640, 762832, 810509, 926296, 953540, 1157870, 1323280, 1621018, 1852592, 1907080, 2315740, 3242036, 3814160, 4052545, 4631480, 6484072, 8105090, 9262960, 12968144, 16210180, 32420360, 64840720]

約数ペア:

[(1, 64840720), (2, 32420360), (4, 16210180), (5, 12968144), (7, 9262960), (8, 8105090), (10, 6484072), (14, 4631480), (16, 4052545), (17, 3814160), (20, 3242036), (28, 2315740), (34, 1907080), (35, 1852592), (40, 1621018), (49, 1323280), (56, 1157870), (68, 953540), (70, 926296), (80, 810509), (85, 762832), (98, 661640), (112, 578935), (119, 544880), (136, 476770), (139, 466480), (140, 463148), (170, 381416), (196, 330820), (238, 272440), (245, 264656), (272, 238385), (278, 233240), (280, 231574), (340, 190708), (343, 189040), (392, 165410), (476, 136220), (490, 132328), (556, 116620), (560, 115787), (595, 108976), (680, 95354), (686, 94520), (695, 93296), (784, 82705), (833, 77840), (952, 68110), (973, 66640), (980, 66164), (1112, 58310), (1190, 54488), (1360, 47677), (1372, 47260), (1390, 46648), (1666, 38920), (1715, 37808), (1904, 34055), (1946, 33320), (1960, 33082), (2224, 29155), (2363, 27440), (2380, 27244), (2744, 23630), (2780, 23324), (3332, 19460), (3430, 18904), (3892, 16660), (3920, 16541), (4165, 15568), (4726, 13720), (4760, 13622), (4865, 13328), (5488, 11815), (5560, 11662), (5831, 11120), (6664, 9730), (6811, 9520), (6860, 9452), (7784, 8330)]