18373040

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:179

約数の個数: 120

約数和(自身を含む): 51313680

約数和(自身を除く): 32940640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 49, 56, 70, 80, 86, 98, 109, 112, 140, 172, 196, 215, 218, 245, 280, 301, 344, 392, 430, 436, 490, 545, 560, 602, 688, 763, 784, 860, 872, 980, 1090, 1204, 1505, 1526, 1720, 1744, 1960, 2107, 2180, 2408, 3010, 3052, 3440, 3815, 3920, 4214, 4360, 4687, 4816, 5341, 6020, 6104, 7630, 8428, 8720, 9374, 10535, 10682, 12040, 12208, 15260, 16856, 18748, 21070, 21364, 23435, 24080, 26705, 30520, 32809, 33712, 37496, 42140, 42728, 46870, 53410, 61040, 65618, 74992, 84280, 85456, 93740, 106820, 131236, 164045, 168560, 187480, 213640, 229663, 262472, 328090, 374960, 427280, 459326, 524944, 656180, 918652, 1148315, 1312360, 1837304, 2296630, 2624720, 3674608, 4593260, 9186520, 18373040]

約数ペア:

[(1, 18373040), (2, 9186520), (4, 4593260), (5, 3674608), (7, 2624720), (8, 2296630), (10, 1837304), (14, 1312360), (16, 1148315), (20, 918652), (28, 656180), (35, 524944), (40, 459326), (43, 427280), (49, 374960), (56, 328090), (70, 262472), (80, 229663), (86, 213640), (98, 187480), (109, 168560), (112, 164045), (140, 131236), (172, 106820), (196, 93740), (215, 85456), (218, 84280), (245, 74992), (280, 65618), (301, 61040), (344, 53410), (392, 46870), (430, 42728), (436, 42140), (490, 37496), (545, 33712), (560, 32809), (602, 30520), (688, 26705), (763, 24080), (784, 23435), (860, 21364), (872, 21070), (980, 18748), (1090, 16856), (1204, 15260), (1505, 12208), (1526, 12040), (1720, 10682), (1744, 10535), (1960, 9374), (2107, 8720), (2180, 8428), (2408, 7630), (3010, 6104), (3052, 6020), (3440, 5341), (3815, 4816), (3920, 4687), (4214, 4360)]