64308140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{247339}}^1$

素因数の和:247361

約数の個数: 24

約数和(自身を含む): 145435920

約数和(自身を除く): 81127780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 247339, 494678, 989356, 1236695, 2473390, 3215407, 4946780, 6430814, 12861628, 16077035, 32154070, 64308140]

約数ペア:

[(1, 64308140), (2, 32154070), (4, 16077035), (5, 12861628), (10, 6430814), (13, 4946780), (20, 3215407), (26, 2473390), (52, 1236695), (65, 989356), (130, 494678), (260, 247339)]