81377556

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{40127}}^1$

素因数の和:40160

約数の個数: 36

約数和(自身を含む): 205615872

約数和(自身を除く): 124238316

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 40127, 80254, 120381, 160508, 240762, 481524, 521651, 1043302, 1564953, 2086604, 3129906, 6259812, 6781463, 13562926, 20344389, 27125852, 40688778, 81377556]

約数ペア:

[(1, 81377556), (2, 40688778), (3, 27125852), (4, 20344389), (6, 13562926), (12, 6781463), (13, 6259812), (26, 3129906), (39, 2086604), (52, 1564953), (78, 1043302), (156, 521651), (169, 481524), (338, 240762), (507, 160508), (676, 120381), (1014, 80254), (2028, 40127)]