71165720

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{14009}}^1$

素因数の和:14147

約数の個数: 32

約数和(自身を含む): 161395200

約数和(自身を除く): 90229480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 14009, 28018, 56036, 70045, 112072, 140090, 280180, 560360, 1779143, 3558286, 7116572, 8895715, 14233144, 17791430, 35582860, 71165720]

約数ペア:

[(1, 71165720), (2, 35582860), (4, 17791430), (5, 14233144), (8, 8895715), (10, 7116572), (20, 3558286), (40, 1779143), (127, 560360), (254, 280180), (508, 140090), (635, 112072), (1016, 70045), (1270, 56036), (2540, 28018), (5080, 14009)]