20808112065

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{222773}}^1$

素因数の和:223273

約数の個数: 32

約数和(自身を含む): 35928990720

約数和(自身を除く): 15120878655

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 479, 1437, 2395, 6227, 7185, 18681, 31135, 93405, 222773, 668319, 1113865, 2896049, 3341595, 8688147, 14480245, 43440735, 106708267, 320124801, 533541335, 1387207471, 1600624005, 4161622413, 6936037355, 20808112065]

約数ペア:

[(1, 20808112065), (3, 6936037355), (5, 4161622413), (13, 1600624005), (15, 1387207471), (39, 533541335), (65, 320124801), (195, 106708267), (479, 43440735), (1437, 14480245), (2395, 8688147), (6227, 3341595), (7185, 2896049), (18681, 1113865), (31135, 668319), (93405, 222773)]