25445720

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{5009}}^1$

素因数の和:5147

約数の個数: 32

約数和(自身を含む): 57715200

約数和(自身を除く): 32269480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5009, 5080, 10018, 20036, 25045, 40072, 50090, 100180, 200360, 636143, 1272286, 2544572, 3180715, 5089144, 6361430, 12722860, 25445720]

約数ペア:

[(1, 25445720), (2, 12722860), (4, 6361430), (5, 5089144), (8, 3180715), (10, 2544572), (20, 1272286), (40, 636143), (127, 200360), (254, 100180), (508, 50090), (635, 40072), (1016, 25045), (1270, 20036), (2540, 10018), (5009, 5080)]