81531216

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{449}}^1$

素因数の和:573

約数の個数: 120

約数和(自身を含む): 248812200

約数和(自身を除く): 167280984

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 97, 104, 117, 144, 156, 194, 208, 234, 291, 312, 388, 449, 468, 582, 624, 776, 873, 898, 936, 1164, 1261, 1347, 1552, 1746, 1796, 1872, 2328, 2522, 2694, 3492, 3592, 3783, 4041, 4656, 5044, 5388, 5837, 6984, 7184, 7566, 8082, 10088, 10776, 11349, 11674, 13968, 15132, 16164, 17511, 20176, 21552, 22698, 23348, 30264, 32328, 35022, 43553, 45396, 46696, 52533, 60528, 64656, 70044, 87106, 90792, 93392, 105066, 130659, 140088, 174212, 181584, 210132, 261318, 280176, 348424, 391977, 420264, 522636, 566189, 696848, 783954, 840528, 1045272, 1132378, 1567908, 1698567, 2090544, 2264756, 3135816, 3397134, 4529512, 5095701, 6271632, 6794268, 9059024, 10191402, 13588536, 20382804, 27177072, 40765608, 81531216]

約数ペア:

[(1, 81531216), (2, 40765608), (3, 27177072), (4, 20382804), (6, 13588536), (8, 10191402), (9, 9059024), (12, 6794268), (13, 6271632), (16, 5095701), (18, 4529512), (24, 3397134), (26, 3135816), (36, 2264756), (39, 2090544), (48, 1698567), (52, 1567908), (72, 1132378), (78, 1045272), (97, 840528), (104, 783954), (117, 696848), (144, 566189), (156, 522636), (194, 420264), (208, 391977), (234, 348424), (291, 280176), (312, 261318), (388, 210132), (449, 181584), (468, 174212), (582, 140088), (624, 130659), (776, 105066), (873, 93392), (898, 90792), (936, 87106), (1164, 70044), (1261, 64656), (1347, 60528), (1552, 52533), (1746, 46696), (1796, 45396), (1872, 43553), (2328, 35022), (2522, 32328), (2694, 30264), (3492, 23348), (3592, 22698), (3783, 21552), (4041, 20176), (4656, 17511), (5044, 16164), (5388, 15132), (5837, 13968), (6984, 11674), (7184, 11349), (7566, 10776), (8082, 10088)]