28392728

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:976

約数の個数: 64

約数和(自身を含む): 67119360

約数和(自身を除く): 38726632

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 43, 52, 56, 86, 91, 104, 172, 182, 301, 344, 364, 559, 602, 728, 907, 1118, 1204, 1814, 2236, 2408, 3628, 3913, 4472, 6349, 7256, 7826, 11791, 12698, 15652, 23582, 25396, 31304, 39001, 47164, 50792, 78002, 82537, 94328, 156004, 165074, 273007, 312008, 330148, 507013, 546014, 660296, 1014026, 1092028, 2028052, 2184056, 3549091, 4056104, 7098182, 14196364, 28392728]

約数ペア:

[(1, 28392728), (2, 14196364), (4, 7098182), (7, 4056104), (8, 3549091), (13, 2184056), (14, 2028052), (26, 1092028), (28, 1014026), (43, 660296), (52, 546014), (56, 507013), (86, 330148), (91, 312008), (104, 273007), (172, 165074), (182, 156004), (301, 94328), (344, 82537), (364, 78002), (559, 50792), (602, 47164), (728, 39001), (907, 31304), (1118, 25396), (1204, 23582), (1814, 15652), (2236, 12698), (2408, 11791), (3628, 7826), (3913, 7256), (4472, 6349)]