20518992

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:237

約数の個数: 120

約数和(自身を含む): 63032424

約数和(自身を除く): 42513432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 97, 104, 113, 117, 144, 156, 194, 208, 226, 234, 291, 312, 339, 388, 452, 468, 582, 624, 678, 776, 873, 904, 936, 1017, 1164, 1261, 1356, 1469, 1552, 1746, 1808, 1872, 2034, 2328, 2522, 2712, 2938, 3492, 3783, 4068, 4407, 4656, 5044, 5424, 5876, 6984, 7566, 8136, 8814, 10088, 10961, 11349, 11752, 13221, 13968, 15132, 16272, 17628, 20176, 21922, 22698, 23504, 26442, 30264, 32883, 35256, 43844, 45396, 52884, 60528, 65766, 70512, 87688, 90792, 98649, 105768, 131532, 142493, 175376, 181584, 197298, 211536, 263064, 284986, 394596, 427479, 526128, 569972, 789192, 854958, 1139944, 1282437, 1578384, 1709916, 2279888, 2564874, 3419832, 5129748, 6839664, 10259496, 20518992]

約数ペア:

[(1, 20518992), (2, 10259496), (3, 6839664), (4, 5129748), (6, 3419832), (8, 2564874), (9, 2279888), (12, 1709916), (13, 1578384), (16, 1282437), (18, 1139944), (24, 854958), (26, 789192), (36, 569972), (39, 526128), (48, 427479), (52, 394596), (72, 284986), (78, 263064), (97, 211536), (104, 197298), (113, 181584), (117, 175376), (144, 142493), (156, 131532), (194, 105768), (208, 98649), (226, 90792), (234, 87688), (291, 70512), (312, 65766), (339, 60528), (388, 52884), (452, 45396), (468, 43844), (582, 35256), (624, 32883), (678, 30264), (776, 26442), (873, 23504), (904, 22698), (936, 21922), (1017, 20176), (1164, 17628), (1261, 16272), (1356, 15132), (1469, 13968), (1552, 13221), (1746, 11752), (1808, 11349), (1872, 10961), (2034, 10088), (2328, 8814), (2522, 8136), (2712, 7566), (2938, 6984), (3492, 5876), (3783, 5424), (4068, 5044), (4407, 4656)]