90475905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{20173}}^1$

素因数の和:20217

約数の個数: 32

約数和(自身を含む): 162683136

約数和(自身を除く): 72207231

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 20173, 60519, 100865, 262249, 302595, 463979, 786747, 1311245, 1391937, 2319895, 3933735, 6031727, 6959685, 18095181, 30158635, 90475905]

約数ペア:

[(1, 90475905), (3, 30158635), (5, 18095181), (13, 6959685), (15, 6031727), (23, 3933735), (39, 2319895), (65, 1391937), (69, 1311245), (115, 786747), (195, 463979), (299, 302595), (345, 262249), (897, 100865), (1495, 60519), (4485, 20173)]