20181676287

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1\times {\mathrm{313}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 28855766016

約数和(自身を除く): 8674089729

約数列:

[1, 3, 41, 43, 73, 123, 129, 167, 219, 313, 501, 939, 1763, 2993, 3139, 5289, 6847, 7181, 8979, 9417, 12191, 12833, 13459, 20541, 21543, 22849, 36573, 38499, 40377, 52271, 68547, 128699, 156813, 294421, 386097, 499831, 524213, 551819, 883263, 936809, 982507, 1499493, 1572639, 1655457, 2143111, 2247653, 2810427, 2947521, 3815783, 6429333, 6742959, 11447349, 21492733, 40282787, 64478199, 92153773, 120848361, 156447103, 164078669, 276461319, 469341309, 492236007, 6727225429, 20181676287]

約数ペア:

[(1, 20181676287), (3, 6727225429), (41, 492236007), (43, 469341309), (73, 276461319), (123, 164078669), (129, 156447103), (167, 120848361), (219, 92153773), (313, 64478199), (501, 40282787), (939, 21492733), (1763, 11447349), (2993, 6742959), (3139, 6429333), (5289, 3815783), (6847, 2947521), (7181, 2810427), (8979, 2247653), (9417, 2143111), (12191, 1655457), (12833, 1572639), (13459, 1499493), (20541, 982507), (21543, 936809), (22849, 883263), (36573, 551819), (38499, 524213), (40377, 499831), (52271, 386097), (68547, 294421), (128699, 156813)]