19965670

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 36864000

約数和(自身を除く): 16898330

約数列:

[1, 2, 5, 10, 79, 127, 158, 199, 254, 395, 398, 635, 790, 995, 1270, 1990, 10033, 15721, 20066, 25273, 31442, 50165, 50546, 78605, 100330, 126365, 157210, 252730, 1996567, 3993134, 9982835, 19965670]

約数ペア:

[(1, 19965670), (2, 9982835), (5, 3993134), (10, 1996567), (79, 252730), (127, 157210), (158, 126365), (199, 100330), (254, 78605), (395, 50546), (398, 50165), (635, 31442), (790, 25273), (995, 20066), (1270, 15721), (1990, 10033)]