25004912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{991}}^1$

素因数の和:1101

約数の個数: 40

約数和(自身を含む): 51663360

約数和(自身を除く): 26658448

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 83, 152, 166, 304, 332, 664, 991, 1328, 1577, 1982, 3154, 3964, 6308, 7928, 12616, 15856, 18829, 25232, 37658, 75316, 82253, 150632, 164506, 301264, 329012, 658024, 1316048, 1562807, 3125614, 6251228, 12502456, 25004912]

約数ペア:

[(1, 25004912), (2, 12502456), (4, 6251228), (8, 3125614), (16, 1562807), (19, 1316048), (38, 658024), (76, 329012), (83, 301264), (152, 164506), (166, 150632), (304, 82253), (332, 75316), (664, 37658), (991, 25232), (1328, 18829), (1577, 15856), (1982, 12616), (3154, 7928), (3964, 6308)]