81397862

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23539}}^1$

素因数の和:23580

約数の個数: 32

約数和(自身を含む): 158188800

約数和(自身を除く): 76790938

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 23539, 47078, 164773, 306007, 329546, 447241, 612014, 894482, 2142049, 3130687, 4284098, 5814133, 6261374, 11628266, 40698931, 81397862]

約数ペア:

[(1, 81397862), (2, 40698931), (7, 11628266), (13, 6261374), (14, 5814133), (19, 4284098), (26, 3130687), (38, 2142049), (91, 894482), (133, 612014), (182, 447241), (247, 329546), (266, 306007), (494, 164773), (1729, 47078), (3458, 23539)]