1389723738

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{574741}}^1$

素因数の和:574790

約数の個数: 32

約数和(自身を含む): 3089812992

約数和(自身を除く): 1700089254

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 574741, 1149482, 1724223, 3448446, 7471633, 14943266, 17816971, 22414899, 35633942, 44829798, 53450913, 106901826, 231620623, 463241246, 694861869, 1389723738]

約数ペア:

[(1, 1389723738), (2, 694861869), (3, 463241246), (6, 231620623), (13, 106901826), (26, 53450913), (31, 44829798), (39, 35633942), (62, 22414899), (78, 17816971), (93, 14943266), (186, 7471633), (403, 3448446), (806, 1724223), (1209, 1149482), (2418, 574741)]