81397925

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 122432640

約数和(自身を除く): 41034715

約数列:

[1, 5, 7, 25, 29, 35, 43, 145, 175, 203, 215, 301, 373, 725, 1015, 1075, 1247, 1505, 1865, 2611, 5075, 6235, 7525, 8729, 9325, 10817, 13055, 16039, 31175, 43645, 54085, 65275, 75719, 80195, 112273, 218225, 270425, 378595, 400975, 465131, 561365, 1892975, 2325655, 2806825, 3255917, 11628275, 16279585, 81397925]

約数ペア:

[(1, 81397925), (5, 16279585), (7, 11628275), (25, 3255917), (29, 2806825), (35, 2325655), (43, 1892975), (145, 561365), (175, 465131), (203, 400975), (215, 378595), (301, 270425), (373, 218225), (725, 112273), (1015, 80195), (1075, 75719), (1247, 65275), (1505, 54085), (1865, 43645), (2611, 31175), (5075, 16039), (6235, 13055), (7525, 10817), (8729, 9325)]