18070985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 24164352

約数和(自身を除く): 6093367

約数列:

[1, 5, 23, 31, 37, 115, 137, 155, 185, 685, 713, 851, 1147, 3151, 3565, 4247, 4255, 5069, 5735, 15755, 21235, 25345, 26381, 97681, 116587, 131905, 157139, 488405, 582935, 785695, 3614197, 18070985]

約数ペア:

[(1, 18070985), (5, 3614197), (23, 785695), (31, 582935), (37, 488405), (115, 157139), (137, 131905), (155, 116587), (185, 97681), (685, 26381), (713, 25345), (851, 21235), (1147, 15755), (3151, 5735), (3565, 5069), (4247, 4255)]