20511648

素因数分解:

$2^5\times 3^2\times {\mathrm{67}}^1\times {\mathrm{1063}}^1$

素因数の和:1146

約数の個数: 72

約数和(自身を含む): 59256288

約数和(自身を除く): 38744640

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 67, 72, 96, 134, 144, 201, 268, 288, 402, 536, 603, 804, 1063, 1072, 1206, 1608, 2126, 2144, 2412, 3189, 3216, 4252, 4824, 6378, 6432, 8504, 9567, 9648, 12756, 17008, 19134, 19296, 25512, 34016, 38268, 51024, 71221, 76536, 102048, 142442, 153072, 213663, 284884, 306144, 427326, 569768, 640989, 854652, 1139536, 1281978, 1709304, 2279072, 2563956, 3418608, 5127912, 6837216, 10255824, 20511648]

約数ペア:

[(1, 20511648), (2, 10255824), (3, 6837216), (4, 5127912), (6, 3418608), (8, 2563956), (9, 2279072), (12, 1709304), (16, 1281978), (18, 1139536), (24, 854652), (32, 640989), (36, 569768), (48, 427326), (67, 306144), (72, 284884), (96, 213663), (134, 153072), (144, 142442), (201, 102048), (268, 76536), (288, 71221), (402, 51024), (536, 38268), (603, 34016), (804, 25512), (1063, 19296), (1072, 19134), (1206, 17008), (1608, 12756), (2126, 9648), (2144, 9567), (2412, 8504), (3189, 6432), (3216, 6378), (4252, 4824)]