81143335

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1283}}^1$

素因数の和:1447

約数の個数: 32

約数和(自身を含む): 120798720

約数和(自身を除く): 39655385

約数列:

[1, 5, 7, 13, 35, 65, 91, 139, 455, 695, 973, 1283, 1807, 4865, 6415, 8981, 9035, 12649, 16679, 44905, 63245, 83395, 116753, 178337, 583765, 891685, 1248359, 2318381, 6241795, 11591905, 16228667, 81143335]

約数ペア:

[(1, 81143335), (5, 16228667), (7, 11591905), (13, 6241795), (35, 2318381), (65, 1248359), (91, 891685), (139, 583765), (455, 178337), (695, 116753), (973, 83395), (1283, 63245), (1807, 44905), (4865, 16679), (6415, 12649), (8981, 9035)]