81531964

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{46643}}^1$

素因数の和:46689

約数の個数: 24

約数和(自身を含む): 156723840

約数和(自身を除く): 75191876

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 437, 874, 1748, 46643, 93286, 186572, 886217, 1072789, 1772434, 2145578, 3544868, 4291156, 20382991, 40765982, 81531964]

約数ペア:

[(1, 81531964), (2, 40765982), (4, 20382991), (19, 4291156), (23, 3544868), (38, 2145578), (46, 1772434), (76, 1072789), (92, 886217), (437, 186572), (874, 93286), (1748, 46643)]