83789020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{443}}^1$

素因数の和:659

約数の個数: 72

約数和(自身を含む): 206209584

約数和(自身を除く): 122420564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 193, 196, 245, 386, 443, 490, 772, 886, 965, 980, 1351, 1772, 1930, 2215, 2702, 3101, 3860, 4430, 5404, 6202, 6755, 8860, 9457, 12404, 13510, 15505, 18914, 21707, 27020, 31010, 37828, 43414, 47285, 62020, 85499, 86828, 94570, 108535, 170998, 189140, 217070, 341996, 427495, 434140, 598493, 854990, 1196986, 1709980, 2393972, 2992465, 4189451, 5984930, 8378902, 11969860, 16757804, 20947255, 41894510, 83789020]

約数ペア:

[(1, 83789020), (2, 41894510), (4, 20947255), (5, 16757804), (7, 11969860), (10, 8378902), (14, 5984930), (20, 4189451), (28, 2992465), (35, 2393972), (49, 1709980), (70, 1196986), (98, 854990), (140, 598493), (193, 434140), (196, 427495), (245, 341996), (386, 217070), (443, 189140), (490, 170998), (772, 108535), (886, 94570), (965, 86828), (980, 85499), (1351, 62020), (1772, 47285), (1930, 43414), (2215, 37828), (2702, 31010), (3101, 27020), (3860, 21707), (4430, 18914), (5404, 15505), (6202, 13510), (6755, 12404), (8860, 9457)]