81233256

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{260363}}^1$

素因数の和:260385

約数の個数: 32

約数和(自身を含む): 218705760

約数和(自身を除く): 137472504

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 260363, 520726, 781089, 1041452, 1562178, 2082904, 3124356, 3384719, 6248712, 6769438, 10154157, 13538876, 20308314, 27077752, 40616628, 81233256]

約数ペア:

[(1, 81233256), (2, 40616628), (3, 27077752), (4, 20308314), (6, 13538876), (8, 10154157), (12, 6769438), (13, 6248712), (24, 3384719), (26, 3124356), (39, 2082904), (52, 1562178), (78, 1041452), (104, 781089), (156, 520726), (312, 260363)]