25756520

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1409}}^1$

素因数の和:1877

約数の個数: 32

約数和(自身を含む): 58120200

約数和(自身を除く): 32363680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1409, 1828, 2285, 2818, 3656, 4570, 5636, 7045, 9140, 11272, 14090, 18280, 28180, 56360, 643913, 1287826, 2575652, 3219565, 5151304, 6439130, 12878260, 25756520]

約数ペア:

[(1, 25756520), (2, 12878260), (4, 6439130), (5, 5151304), (8, 3219565), (10, 2575652), (20, 1287826), (40, 643913), (457, 56360), (914, 28180), (1409, 18280), (1828, 14090), (2285, 11272), (2818, 9140), (3656, 7045), (4570, 5636)]