80328640

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:187

約数の個数: 168

約数和(自身を含む): 229331520

約数和(自身を除く): 149002880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 49, 56, 64, 70, 80, 94, 98, 109, 112, 140, 160, 188, 196, 218, 224, 235, 245, 280, 320, 329, 376, 392, 436, 448, 470, 490, 545, 560, 658, 752, 763, 784, 872, 940, 980, 1090, 1120, 1316, 1504, 1526, 1568, 1645, 1744, 1880, 1960, 2180, 2240, 2303, 2632, 3008, 3052, 3136, 3290, 3488, 3760, 3815, 3920, 4360, 4606, 5123, 5264, 5341, 6104, 6580, 6976, 7520, 7630, 7840, 8720, 9212, 10246, 10528, 10682, 11515, 12208, 13160, 15040, 15260, 15680, 17440, 18424, 20492, 21056, 21364, 23030, 24416, 25615, 26320, 26705, 30520, 34880, 35861, 36848, 40984, 42728, 46060, 48832, 51230, 52640, 53410, 61040, 71722, 73696, 81968, 85456, 92120, 102460, 105280, 106820, 122080, 143444, 147392, 163936, 170912, 179305, 184240, 204920, 213640, 244160, 251027, 286888, 327872, 341824, 358610, 368480, 409840, 427280, 502054, 573776, 717220, 736960, 819680, 854560, 1004108, 1147552, 1255135, 1434440, 1639360, 1709120, 2008216, 2295104, 2510270, 2868880, 4016432, 5020540, 5737760, 8032864, 10041080, 11475520, 16065728, 20082160, 40164320, 80328640]

約数ペア:

[(1, 80328640), (2, 40164320), (4, 20082160), (5, 16065728), (7, 11475520), (8, 10041080), (10, 8032864), (14, 5737760), (16, 5020540), (20, 4016432), (28, 2868880), (32, 2510270), (35, 2295104), (40, 2008216), (47, 1709120), (49, 1639360), (56, 1434440), (64, 1255135), (70, 1147552), (80, 1004108), (94, 854560), (98, 819680), (109, 736960), (112, 717220), (140, 573776), (160, 502054), (188, 427280), (196, 409840), (218, 368480), (224, 358610), (235, 341824), (245, 327872), (280, 286888), (320, 251027), (329, 244160), (376, 213640), (392, 204920), (436, 184240), (448, 179305), (470, 170912), (490, 163936), (545, 147392), (560, 143444), (658, 122080), (752, 106820), (763, 105280), (784, 102460), (872, 92120), (940, 85456), (980, 81968), (1090, 73696), (1120, 71722), (1316, 61040), (1504, 53410), (1526, 52640), (1568, 51230), (1645, 48832), (1744, 46060), (1880, 42728), (1960, 40984), (2180, 36848), (2240, 35861), (2303, 34880), (2632, 30520), (3008, 26705), (3052, 26320), (3136, 25615), (3290, 24416), (3488, 23030), (3760, 21364), (3815, 21056), (3920, 20492), (4360, 18424), (4606, 17440), (5123, 15680), (5264, 15260), (5341, 15040), (6104, 13160), (6580, 12208), (6976, 11515), (7520, 10682), (7630, 10528), (7840, 10246), (8720, 9212)]