201910865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 268966656

約数和(自身を除く): 67055791

約数列:

[1, 5, 13, 65, 67, 71, 335, 355, 653, 871, 923, 3265, 4355, 4615, 4757, 8489, 23785, 42445, 43751, 46363, 61841, 218755, 231815, 309205, 568763, 602719, 2843815, 3013595, 3106321, 15531605, 40382173, 201910865]

約数ペア:

[(1, 201910865), (5, 40382173), (13, 15531605), (65, 3106321), (67, 3013595), (71, 2843815), (335, 602719), (355, 568763), (653, 309205), (871, 231815), (923, 218755), (3265, 61841), (4355, 46363), (4615, 43751), (4757, 42445), (8489, 23785)]