81357768

素因数分解:

$2^3\times 3^2\times {\mathrm{1063}}^2$

素因数の和:2138

約数の個数: 36

約数和(自身を含む): 220551435

約数和(自身を除く): 139193667

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 1063, 2126, 3189, 4252, 6378, 8504, 9567, 12756, 19134, 25512, 38268, 76536, 1129969, 2259938, 3389907, 4519876, 6779814, 9039752, 10169721, 13559628, 20339442, 27119256, 40678884, 81357768]

約数ペア:

[(1, 81357768), (2, 40678884), (3, 27119256), (4, 20339442), (6, 13559628), (8, 10169721), (9, 9039752), (12, 6779814), (18, 4519876), (24, 3389907), (36, 2259938), (72, 1129969), (1063, 76536), (2126, 38268), (3189, 25512), (4252, 19134), (6378, 12756), (8504, 9567)]