81515736

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^2\times {\mathrm{827}}^1$

素因数の和:913

約数の個数: 72

約数和(自身を含む): 227174220

約数和(自身を除く): 145658484

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 827, 888, 1332, 1369, 1654, 2481, 2664, 2738, 3308, 4107, 4962, 5476, 6616, 7443, 8214, 9924, 10952, 12321, 14886, 16428, 19848, 24642, 29772, 30599, 32856, 49284, 59544, 61198, 91797, 98568, 122396, 183594, 244792, 275391, 367188, 550782, 734376, 1101564, 1132163, 2203128, 2264326, 3396489, 4528652, 6792978, 9057304, 10189467, 13585956, 20378934, 27171912, 40757868, 81515736]

約数ペア:

[(1, 81515736), (2, 40757868), (3, 27171912), (4, 20378934), (6, 13585956), (8, 10189467), (9, 9057304), (12, 6792978), (18, 4528652), (24, 3396489), (36, 2264326), (37, 2203128), (72, 1132163), (74, 1101564), (111, 734376), (148, 550782), (222, 367188), (296, 275391), (333, 244792), (444, 183594), (666, 122396), (827, 98568), (888, 91797), (1332, 61198), (1369, 59544), (1654, 49284), (2481, 32856), (2664, 30599), (2738, 29772), (3308, 24642), (4107, 19848), (4962, 16428), (5476, 14886), (6616, 12321), (7443, 10952), (8214, 9924)]