78115520

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{811}}^1$

素因数の和:878

約数の個数: 112

約数和(自身を含む): 217797888

約数和(自身を除く): 139682368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 112, 140, 160, 172, 215, 224, 280, 301, 320, 344, 430, 448, 560, 602, 688, 811, 860, 1120, 1204, 1376, 1505, 1622, 1720, 2240, 2408, 2752, 3010, 3244, 3440, 4055, 4816, 5677, 6020, 6488, 6880, 8110, 9632, 11354, 12040, 12976, 13760, 16220, 19264, 22708, 24080, 25952, 28385, 32440, 34873, 45416, 48160, 51904, 56770, 64880, 69746, 90832, 96320, 113540, 129760, 139492, 174365, 181664, 227080, 244111, 259520, 278984, 348730, 363328, 454160, 488222, 557968, 697460, 908320, 976444, 1115936, 1220555, 1394920, 1816640, 1952888, 2231872, 2441110, 2789840, 3905776, 4882220, 5579680, 7811552, 9764440, 11159360, 15623104, 19528880, 39057760, 78115520]

約数ペア:

[(1, 78115520), (2, 39057760), (4, 19528880), (5, 15623104), (7, 11159360), (8, 9764440), (10, 7811552), (14, 5579680), (16, 4882220), (20, 3905776), (28, 2789840), (32, 2441110), (35, 2231872), (40, 1952888), (43, 1816640), (56, 1394920), (64, 1220555), (70, 1115936), (80, 976444), (86, 908320), (112, 697460), (140, 557968), (160, 488222), (172, 454160), (215, 363328), (224, 348730), (280, 278984), (301, 259520), (320, 244111), (344, 227080), (430, 181664), (448, 174365), (560, 139492), (602, 129760), (688, 113540), (811, 96320), (860, 90832), (1120, 69746), (1204, 64880), (1376, 56770), (1505, 51904), (1622, 48160), (1720, 45416), (2240, 34873), (2408, 32440), (2752, 28385), (3010, 25952), (3244, 24080), (3440, 22708), (4055, 19264), (4816, 16220), (5677, 13760), (6020, 12976), (6488, 12040), (6880, 11354), (8110, 9632)]