12991507775

素因数分解:

$5^2\times {\mathrm{229}}^1\times {\mathrm{401}}^1\times {\mathrm{5659}}^1$

素因数の和:6299

約数の個数: 24

約数和(自身を含む): 16223031600

約数和(自身を除く): 3231523825

約数列:

[1, 5, 25, 229, 401, 1145, 2005, 5659, 5725, 10025, 28295, 91829, 141475, 459145, 1295911, 2269259, 2295725, 6479555, 11346295, 32397775, 56731475, 519660311, 2598301555, 12991507775]

約数ペア:

[(1, 12991507775), (5, 2598301555), (25, 519660311), (229, 56731475), (401, 32397775), (1145, 11346295), (2005, 6479555), (5659, 2295725), (5725, 2269259), (10025, 1295911), (28295, 459145), (91829, 141475)]