128311225

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 190523520

約数和(自身を除く): 62212295

約数列:

[1, 5, 7, 25, 29, 35, 131, 145, 175, 193, 203, 655, 725, 917, 965, 1015, 1351, 3275, 3799, 4585, 4825, 5075, 5597, 6755, 18995, 22925, 25283, 26593, 27985, 33775, 39179, 94975, 126415, 132965, 139925, 176981, 195895, 632075, 664825, 733207, 884905, 979475, 3666035, 4424525, 5132449, 18330175, 25662245, 128311225]

約数ペア:

[(1, 128311225), (5, 25662245), (7, 18330175), (25, 5132449), (29, 4424525), (35, 3666035), (131, 979475), (145, 884905), (175, 733207), (193, 664825), (203, 632075), (655, 195895), (725, 176981), (917, 139925), (965, 132965), (1015, 126415), (1351, 94975), (3275, 39179), (3799, 33775), (4585, 27985), (4825, 26593), (5075, 25283), (5597, 22925), (6755, 18995)]