81913280

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5953}}^1$

素因数の和:6013

約数の個数: 56

約数和(自身を含む): 199625712

約数和(自身を除く): 117712432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 160, 172, 215, 320, 344, 430, 688, 860, 1376, 1720, 2752, 3440, 5953, 6880, 11906, 13760, 23812, 29765, 47624, 59530, 95248, 119060, 190496, 238120, 255979, 380992, 476240, 511958, 952480, 1023916, 1279895, 1904960, 2047832, 2559790, 4095664, 5119580, 8191328, 10239160, 16382656, 20478320, 40956640, 81913280]

約数ペア:

[(1, 81913280), (2, 40956640), (4, 20478320), (5, 16382656), (8, 10239160), (10, 8191328), (16, 5119580), (20, 4095664), (32, 2559790), (40, 2047832), (43, 1904960), (64, 1279895), (80, 1023916), (86, 952480), (160, 511958), (172, 476240), (215, 380992), (320, 255979), (344, 238120), (430, 190496), (688, 119060), (860, 95248), (1376, 59530), (1720, 47624), (2752, 29765), (3440, 23812), (5953, 13760), (6880, 11906)]