20387430

素因数分解:

$2^1\times 3^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:120

約数の個数: 192

約数和(自身を含む): 66977280

約数和(自身を除く): 46589850

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 27, 30, 35, 42, 45, 46, 49, 54, 63, 67, 69, 70, 90, 98, 105, 115, 126, 134, 135, 138, 147, 161, 189, 201, 207, 210, 230, 245, 270, 294, 315, 322, 335, 345, 378, 402, 414, 441, 469, 483, 490, 603, 621, 630, 670, 690, 735, 805, 882, 938, 945, 966, 1005, 1035, 1127, 1206, 1242, 1323, 1407, 1449, 1470, 1541, 1610, 1809, 1890, 2010, 2070, 2205, 2254, 2345, 2415, 2646, 2814, 2898, 3015, 3082, 3105, 3283, 3381, 3618, 4221, 4347, 4410, 4623, 4690, 4830, 5635, 6030, 6210, 6566, 6615, 6762, 7035, 7245, 7705, 8442, 8694, 9045, 9246, 9849, 10143, 10787, 11270, 12663, 13230, 13869, 14070, 14490, 15410, 16415, 16905, 18090, 19698, 20286, 21105, 21574, 21735, 23115, 25326, 27738, 29547, 30429, 32361, 32830, 33810, 41607, 42210, 43470, 46230, 49245, 50715, 53935, 59094, 60858, 63315, 64722, 69345, 75509, 83214, 88641, 97083, 98490, 101430, 107870, 126630, 138690, 147735, 151018, 152145, 161805, 177282, 194166, 208035, 226527, 291249, 295470, 304290, 323610, 377545, 416070, 443205, 453054, 485415, 582498, 679581, 755090, 886410, 970830, 1132635, 1359162, 1456245, 2038743, 2265270, 2912490, 3397905, 4077486, 6795810, 10193715, 20387430]

約数ペア:

[(1, 20387430), (2, 10193715), (3, 6795810), (5, 4077486), (6, 3397905), (7, 2912490), (9, 2265270), (10, 2038743), (14, 1456245), (15, 1359162), (18, 1132635), (21, 970830), (23, 886410), (27, 755090), (30, 679581), (35, 582498), (42, 485415), (45, 453054), (46, 443205), (49, 416070), (54, 377545), (63, 323610), (67, 304290), (69, 295470), (70, 291249), (90, 226527), (98, 208035), (105, 194166), (115, 177282), (126, 161805), (134, 152145), (135, 151018), (138, 147735), (147, 138690), (161, 126630), (189, 107870), (201, 101430), (207, 98490), (210, 97083), (230, 88641), (245, 83214), (270, 75509), (294, 69345), (315, 64722), (322, 63315), (335, 60858), (345, 59094), (378, 53935), (402, 50715), (414, 49245), (441, 46230), (469, 43470), (483, 42210), (490, 41607), (603, 33810), (621, 32830), (630, 32361), (670, 30429), (690, 29547), (735, 27738), (805, 25326), (882, 23115), (938, 21735), (945, 21574), (966, 21105), (1005, 20286), (1035, 19698), (1127, 18090), (1206, 16905), (1242, 16415), (1323, 15410), (1407, 14490), (1449, 14070), (1470, 13869), (1541, 13230), (1610, 12663), (1809, 11270), (1890, 10787), (2010, 10143), (2070, 9849), (2205, 9246), (2254, 9045), (2345, 8694), (2415, 8442), (2646, 7705), (2814, 7245), (2898, 7035), (3015, 6762), (3082, 6615), (3105, 6566), (3283, 6210), (3381, 6030), (3618, 5635), (4221, 4830), (4347, 4690), (4410, 4623)]