19770025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 28837440

約数和(自身を除く): 9067415

約数列:

[1, 5, 11, 25, 29, 37, 55, 67, 145, 185, 275, 319, 335, 407, 725, 737, 925, 1073, 1595, 1675, 1943, 2035, 2479, 3685, 5365, 7975, 9715, 10175, 11803, 12395, 18425, 21373, 26825, 27269, 48575, 59015, 61975, 71891, 106865, 136345, 295075, 359455, 534325, 681725, 790801, 1797275, 3954005, 19770025]

約数ペア:

[(1, 19770025), (5, 3954005), (11, 1797275), (25, 790801), (29, 681725), (37, 534325), (55, 359455), (67, 295075), (145, 136345), (185, 106865), (275, 71891), (319, 61975), (335, 59015), (407, 48575), (725, 27269), (737, 26825), (925, 21373), (1073, 18425), (1595, 12395), (1675, 11803), (1943, 10175), (2035, 9715), (2479, 7975), (3685, 5365)]