20281284

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 54600000

約数和(自身を除く): 34318716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 149, 171, 199, 228, 298, 342, 398, 447, 596, 597, 684, 796, 894, 1194, 1341, 1788, 1791, 2388, 2682, 2831, 3582, 3781, 5364, 5662, 7164, 7562, 8493, 11324, 11343, 15124, 16986, 22686, 25479, 29651, 33972, 34029, 45372, 50958, 59302, 68058, 88953, 101916, 118604, 136116, 177906, 266859, 355812, 533718, 563369, 1067436, 1126738, 1690107, 2253476, 3380214, 5070321, 6760428, 10140642, 20281284]

約数ペア:

[(1, 20281284), (2, 10140642), (3, 6760428), (4, 5070321), (6, 3380214), (9, 2253476), (12, 1690107), (18, 1126738), (19, 1067436), (36, 563369), (38, 533718), (57, 355812), (76, 266859), (114, 177906), (149, 136116), (171, 118604), (199, 101916), (228, 88953), (298, 68058), (342, 59302), (398, 50958), (447, 45372), (596, 34029), (597, 33972), (684, 29651), (796, 25479), (894, 22686), (1194, 16986), (1341, 15124), (1788, 11343), (1791, 11324), (2388, 8493), (2682, 7562), (2831, 7164), (3582, 5662), (3781, 5364)]