63905480

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2417}}^1$

素因数の和:3089

約数の個数: 32

約数和(自身を含む): 144064440

約数和(自身を除く): 80158960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2417, 2644, 3305, 4834, 5288, 6610, 9668, 12085, 13220, 19336, 24170, 26440, 48340, 96680, 1597637, 3195274, 6390548, 7988185, 12781096, 15976370, 31952740, 63905480]

約数ペア:

[(1, 63905480), (2, 31952740), (4, 15976370), (5, 12781096), (8, 7988185), (10, 6390548), (20, 3195274), (40, 1597637), (661, 96680), (1322, 48340), (2417, 26440), (2644, 24170), (3305, 19336), (4834, 13220), (5288, 12085), (6610, 9668)]