28954480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:518

約数の個数: 80

約数和(自身を含む): 72673920

約数和(自身を除く): 43719440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 304, 344, 380, 430, 443, 688, 760, 817, 860, 886, 1520, 1634, 1720, 1772, 2215, 3268, 3440, 3544, 4085, 4430, 6536, 7088, 8170, 8417, 8860, 13072, 16340, 16834, 17720, 19049, 32680, 33668, 35440, 38098, 42085, 65360, 67336, 76196, 84170, 95245, 134672, 152392, 168340, 190490, 304784, 336680, 361931, 380980, 673360, 723862, 761960, 1447724, 1523920, 1809655, 2895448, 3619310, 5790896, 7238620, 14477240, 28954480]

約数ペア:

[(1, 28954480), (2, 14477240), (4, 7238620), (5, 5790896), (8, 3619310), (10, 2895448), (16, 1809655), (19, 1523920), (20, 1447724), (38, 761960), (40, 723862), (43, 673360), (76, 380980), (80, 361931), (86, 336680), (95, 304784), (152, 190490), (172, 168340), (190, 152392), (215, 134672), (304, 95245), (344, 84170), (380, 76196), (430, 67336), (443, 65360), (688, 42085), (760, 38098), (817, 35440), (860, 33668), (886, 32680), (1520, 19049), (1634, 17720), (1720, 16834), (1772, 16340), (2215, 13072), (3268, 8860), (3440, 8417), (3544, 8170), (4085, 7088), (4430, 6536)]