18867870

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 58752000

約数和(自身を除く): 39884130

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 67, 70, 90, 105, 126, 134, 135, 149, 189, 201, 210, 270, 298, 315, 335, 378, 402, 447, 469, 603, 630, 670, 745, 894, 938, 945, 1005, 1043, 1206, 1341, 1407, 1490, 1809, 1890, 2010, 2086, 2235, 2345, 2682, 2814, 3015, 3129, 3618, 4023, 4221, 4470, 4690, 5215, 6030, 6258, 6705, 7035, 8046, 8442, 9045, 9387, 9983, 10430, 12663, 13410, 14070, 15645, 18090, 18774, 19966, 20115, 21105, 25326, 28161, 29949, 31290, 40230, 42210, 46935, 49915, 56322, 59898, 63315, 69881, 89847, 93870, 99830, 126630, 139762, 140805, 149745, 179694, 209643, 269541, 281610, 299490, 349405, 419286, 449235, 539082, 628929, 698810, 898470, 1048215, 1257858, 1347705, 1886787, 2096430, 2695410, 3144645, 3773574, 6289290, 9433935, 18867870]

約数ペア:

[(1, 18867870), (2, 9433935), (3, 6289290), (5, 3773574), (6, 3144645), (7, 2695410), (9, 2096430), (10, 1886787), (14, 1347705), (15, 1257858), (18, 1048215), (21, 898470), (27, 698810), (30, 628929), (35, 539082), (42, 449235), (45, 419286), (54, 349405), (63, 299490), (67, 281610), (70, 269541), (90, 209643), (105, 179694), (126, 149745), (134, 140805), (135, 139762), (149, 126630), (189, 99830), (201, 93870), (210, 89847), (270, 69881), (298, 63315), (315, 59898), (335, 56322), (378, 49915), (402, 46935), (447, 42210), (469, 40230), (603, 31290), (630, 29949), (670, 28161), (745, 25326), (894, 21105), (938, 20115), (945, 19966), (1005, 18774), (1043, 18090), (1206, 15645), (1341, 14070), (1407, 13410), (1490, 12663), (1809, 10430), (1890, 9983), (2010, 9387), (2086, 9045), (2235, 8442), (2345, 8046), (2682, 7035), (2814, 6705), (3015, 6258), (3129, 6030), (3618, 5215), (4023, 4690), (4221, 4470)]