81398616

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{260893}}^1$

素因数の和:260915

約数の個数: 32

約数和(自身を含む): 219150960

約数和(自身を除く): 137752344

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 260893, 521786, 782679, 1043572, 1565358, 2087144, 3130716, 3391609, 6261432, 6783218, 10174827, 13566436, 20349654, 27132872, 40699308, 81398616]

約数ペア:

[(1, 81398616), (2, 40699308), (3, 27132872), (4, 20349654), (6, 13566436), (8, 10174827), (12, 6783218), (13, 6261432), (24, 3391609), (26, 3130716), (39, 2087144), (52, 1565358), (78, 1043572), (104, 782679), (156, 521786), (312, 260893)]