18525920

素因数分解:

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

素因数の和:185

約数の個数: 144

約数和(自身を含む): 54295920

約数和(自身を除く): 35770000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 139, 140, 160, 170, 196, 224, 238, 245, 272, 278, 280, 340, 392, 476, 490, 544, 556, 560, 595, 680, 695, 784, 833, 952, 973, 980, 1112, 1120, 1190, 1360, 1390, 1568, 1666, 1904, 1946, 1960, 2224, 2363, 2380, 2720, 2780, 3332, 3808, 3892, 3920, 4165, 4448, 4726, 4760, 4865, 5560, 6664, 6811, 7784, 7840, 8330, 9452, 9520, 9730, 11120, 11815, 13328, 13622, 15568, 16541, 16660, 18904, 19040, 19460, 22240, 23630, 26656, 27244, 31136, 33082, 33320, 34055, 37808, 38920, 47260, 54488, 66164, 66640, 68110, 75616, 77840, 82705, 94520, 108976, 115787, 132328, 133280, 136220, 155680, 165410, 189040, 217952, 231574, 264656, 272440, 330820, 378080, 463148, 529312, 544880, 578935, 661640, 926296, 1089760, 1157870, 1323280, 1852592, 2315740, 2646560, 3705184, 4631480, 9262960, 18525920]

約数ペア:

[(1, 18525920), (2, 9262960), (4, 4631480), (5, 3705184), (7, 2646560), (8, 2315740), (10, 1852592), (14, 1323280), (16, 1157870), (17, 1089760), (20, 926296), (28, 661640), (32, 578935), (34, 544880), (35, 529312), (40, 463148), (49, 378080), (56, 330820), (68, 272440), (70, 264656), (80, 231574), (85, 217952), (98, 189040), (112, 165410), (119, 155680), (136, 136220), (139, 133280), (140, 132328), (160, 115787), (170, 108976), (196, 94520), (224, 82705), (238, 77840), (245, 75616), (272, 68110), (278, 66640), (280, 66164), (340, 54488), (392, 47260), (476, 38920), (490, 37808), (544, 34055), (556, 33320), (560, 33082), (595, 31136), (680, 27244), (695, 26656), (784, 23630), (833, 22240), (952, 19460), (973, 19040), (980, 18904), (1112, 16660), (1120, 16541), (1190, 15568), (1360, 13622), (1390, 13328), (1568, 11815), (1666, 11120), (1904, 9730), (1946, 9520), (1960, 9452), (2224, 8330), (2363, 7840), (2380, 7784), (2720, 6811), (2780, 6664), (3332, 5560), (3808, 4865), (3892, 4760), (3920, 4726), (4165, 4448)]