20147579720

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3966059}}^1$

素因数の和:3966197

約数の個数: 32

約数和(自身を含む): 45689011200

約数和(自身を除く): 25541431480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 3966059, 7932118, 15864236, 19830295, 31728472, 39660590, 79321180, 158642360, 503689493, 1007378986, 2014757972, 2518447465, 4029515944, 5036894930, 10073789860, 20147579720]

約数ペア:

[(1, 20147579720), (2, 10073789860), (4, 5036894930), (5, 4029515944), (8, 2518447465), (10, 2014757972), (20, 1007378986), (40, 503689493), (127, 158642360), (254, 79321180), (508, 39660590), (635, 31728472), (1016, 19830295), (1270, 15864236), (2540, 7932118), (5080, 3966059)]