80110660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1471}}^1$

素因数の和:1876

約数の個数: 48

約数和(自身を含む): 192890880

約数和(自身を除く): 112780220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 778, 1471, 1556, 1945, 2723, 2942, 3890, 5446, 5884, 7355, 7780, 10297, 10892, 13615, 14710, 20594, 27230, 29420, 41188, 51485, 54460, 102970, 205940, 572219, 1144438, 2288876, 2861095, 4005533, 5722190, 8011066, 11444380, 16022132, 20027665, 40055330, 80110660]

約数ペア:

[(1, 80110660), (2, 40055330), (4, 20027665), (5, 16022132), (7, 11444380), (10, 8011066), (14, 5722190), (20, 4005533), (28, 2861095), (35, 2288876), (70, 1144438), (140, 572219), (389, 205940), (778, 102970), (1471, 54460), (1556, 51485), (1945, 41188), (2723, 29420), (2942, 27230), (3890, 20594), (5446, 14710), (5884, 13615), (7355, 10892), (7780, 10297)]