128611280

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:186

約数の個数: 160

約数和(自身を含む): 360096000

約数和(自身を除く): 231484720

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, 343, 344, 392, 430, 436, 490, 545, 560, 602, 686, 688, 763, 784, 860, 872, 980, 1090, 1204, 1372, 1505, 1526, 1715, 1720, 1744, 1960, 2107, 2180, 2408, 2744, 3010, 3052, 3430, 3440, 3815, 3920, 4214, 4360, 4687, 4816, 5341, 5488, 6020, 6104, 6860, 7630, 8428, 8720, 9374, 10535, 10682, 12040, 12208, 13720, 14749, 15260, 16856, 18748, 21070, 21364, 23435, 24080, 26705, 27440, 29498, 30520, 32809, 33712, 37387, 37496, 42140, 42728, 46870, 53410, 58996, 61040, 65618, 73745, 74774, 74992, 84280, 85456, 93740, 106820, 117992, 131236, 147490, 149548, 164045, 168560, 186935, 187480, 213640, 229663, 235984, 262472, 294980, 299096, 328090, 373870, 374960, 427280, 459326, 524944, 589960, 598192, 656180, 747740, 918652, 1148315, 1179920, 1312360, 1495480, 1607641, 1837304, 2296630, 2624720, 2990960, 3215282, 3674608, 4593260, 6430564, 8038205, 9186520, 12861128, 16076410, 18373040, 25722256, 32152820, 64305640, 128611280]

約数ペア:

[(1, 128611280), (2, 64305640), (4, 32152820), (5, 25722256), (7, 18373040), (8, 16076410), (10, 12861128), (14, 9186520), (16, 8038205), (20, 6430564), (28, 4593260), (35, 3674608), (40, 3215282), (43, 2990960), (49, 2624720), (56, 2296630), (70, 1837304), (80, 1607641), (86, 1495480), (98, 1312360), (109, 1179920), (112, 1148315), (140, 918652), (172, 747740), (196, 656180), (215, 598192), (218, 589960), (245, 524944), (280, 459326), (301, 427280), (343, 374960), (344, 373870), (392, 328090), (430, 299096), (436, 294980), (490, 262472), (545, 235984), (560, 229663), (602, 213640), (686, 187480), (688, 186935), (763, 168560), (784, 164045), (860, 149548), (872, 147490), (980, 131236), (1090, 117992), (1204, 106820), (1372, 93740), (1505, 85456), (1526, 84280), (1715, 74992), (1720, 74774), (1744, 73745), (1960, 65618), (2107, 61040), (2180, 58996), (2408, 53410), (2744, 46870), (3010, 42728), (3052, 42140), (3430, 37496), (3440, 37387), (3815, 33712), (3920, 32809), (4214, 30520), (4360, 29498), (4687, 27440), (4816, 26705), (5341, 24080), (5488, 23435), (6020, 21364), (6104, 21070), (6860, 18748), (7630, 16856), (8428, 15260), (8720, 14749), (9374, 13720), (10535, 12208), (10682, 12040)]