28139200

素因数分解:

$2^6\times 5^2\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:474

約数の個数: 84

約数和(自身を含む): 71023480

約数和(自身を除く): 42884280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 64, 80, 86, 100, 160, 172, 200, 215, 320, 344, 400, 409, 430, 688, 800, 818, 860, 1075, 1376, 1600, 1636, 1720, 2045, 2150, 2752, 3272, 3440, 4090, 4300, 6544, 6880, 8180, 8600, 10225, 13088, 13760, 16360, 17200, 17587, 20450, 26176, 32720, 34400, 35174, 40900, 65440, 68800, 70348, 81800, 87935, 130880, 140696, 163600, 175870, 281392, 327200, 351740, 439675, 562784, 654400, 703480, 879350, 1125568, 1406960, 1758700, 2813920, 3517400, 5627840, 7034800, 14069600, 28139200]

約数ペア:

[(1, 28139200), (2, 14069600), (4, 7034800), (5, 5627840), (8, 3517400), (10, 2813920), (16, 1758700), (20, 1406960), (25, 1125568), (32, 879350), (40, 703480), (43, 654400), (50, 562784), (64, 439675), (80, 351740), (86, 327200), (100, 281392), (160, 175870), (172, 163600), (200, 140696), (215, 130880), (320, 87935), (344, 81800), (400, 70348), (409, 68800), (430, 65440), (688, 40900), (800, 35174), (818, 34400), (860, 32720), (1075, 26176), (1376, 20450), (1600, 17587), (1636, 17200), (1720, 16360), (2045, 13760), (2150, 13088), (2752, 10225), (3272, 8600), (3440, 8180), (4090, 6880), (4300, 6544)]