68957380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{443}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 149333184

約数和(自身を除く): 80375804

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 181, 215, 362, 430, 443, 724, 860, 886, 905, 1772, 1810, 2215, 3620, 4430, 7783, 8860, 15566, 19049, 31132, 38098, 38915, 76196, 77830, 80183, 95245, 155660, 160366, 190490, 320732, 380980, 400915, 801830, 1603660, 3447869, 6895738, 13791476, 17239345, 34478690, 68957380]

約数ペア:

[(1, 68957380), (2, 34478690), (4, 17239345), (5, 13791476), (10, 6895738), (20, 3447869), (43, 1603660), (86, 801830), (172, 400915), (181, 380980), (215, 320732), (362, 190490), (430, 160366), (443, 155660), (724, 95245), (860, 80183), (886, 77830), (905, 76196), (1772, 38915), (1810, 38098), (2215, 31132), (3620, 19049), (4430, 15566), (7783, 8860)]