31997485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1259}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 45722880

約数和(自身を除く): 13725395

約数列:

[1, 5, 13, 17, 23, 65, 85, 115, 221, 299, 391, 1105, 1259, 1495, 1955, 5083, 6295, 16367, 21403, 25415, 28957, 81835, 107015, 144785, 278239, 376441, 492269, 1391195, 1882205, 2461345, 6399497, 31997485]

約数ペア:

[(1, 31997485), (5, 6399497), (13, 2461345), (17, 1882205), (23, 1391195), (65, 492269), (85, 376441), (115, 278239), (221, 144785), (299, 107015), (391, 81835), (1105, 28957), (1259, 25415), (1495, 21403), (1955, 16367), (5083, 6295)]