313892020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{3041}}^1$

素因数の和:3460

約数の個数: 48

約数和(自身を含む): 711901008

約数和(自身を除く): 398008988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 397, 794, 1588, 1985, 3041, 3970, 5161, 6082, 7940, 10322, 12164, 15205, 20644, 25805, 30410, 39533, 51610, 60820, 79066, 103220, 158132, 197665, 395330, 790660, 1207277, 2414554, 4829108, 6036385, 12072770, 15694601, 24145540, 31389202, 62778404, 78473005, 156946010, 313892020]

約数ペア:

[(1, 313892020), (2, 156946010), (4, 78473005), (5, 62778404), (10, 31389202), (13, 24145540), (20, 15694601), (26, 12072770), (52, 6036385), (65, 4829108), (130, 2414554), (260, 1207277), (397, 790660), (794, 395330), (1588, 197665), (1985, 158132), (3041, 103220), (3970, 79066), (5161, 60820), (6082, 51610), (7940, 39533), (10322, 30410), (12164, 25805), (15205, 20644)]