25305891

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 40055040

約数和(自身を除く): 14749149

約数列:

[1, 3, 13, 19, 37, 39, 57, 71, 111, 169, 213, 247, 481, 507, 703, 741, 923, 1349, 1443, 2109, 2627, 2769, 3211, 4047, 6253, 7881, 9139, 9633, 11999, 17537, 18759, 27417, 34151, 35997, 49913, 52611, 102453, 118807, 149739, 227981, 356421, 443963, 648869, 683943, 1331889, 1946607, 8435297, 25305891]

約数ペア:

[(1, 25305891), (3, 8435297), (13, 1946607), (19, 1331889), (37, 683943), (39, 648869), (57, 443963), (71, 356421), (111, 227981), (169, 149739), (213, 118807), (247, 102453), (481, 52611), (507, 49913), (703, 35997), (741, 34151), (923, 27417), (1349, 18759), (1443, 17537), (2109, 11999), (2627, 9633), (2769, 9139), (3211, 7881), (4047, 6253)]