398439125

素因数分解:

$5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 603992064

約数和(自身を除く): 205552939

約数列:

[1, 5, 7, 25, 31, 35, 37, 125, 155, 175, 185, 217, 259, 397, 775, 875, 925, 1085, 1147, 1295, 1985, 2779, 3875, 4625, 5425, 5735, 6475, 8029, 9925, 12307, 13895, 14689, 27125, 28675, 32375, 40145, 49625, 61535, 69475, 73445, 86149, 102823, 143375, 200725, 307675, 347375, 367225, 430745, 455359, 514115, 1003625, 1538375, 1836125, 2153725, 2276795, 2570575, 3187513, 10768625, 11383975, 12852875, 15937565, 56919875, 79687825, 398439125]

約数ペア:

[(1, 398439125), (5, 79687825), (7, 56919875), (25, 15937565), (31, 12852875), (35, 11383975), (37, 10768625), (125, 3187513), (155, 2570575), (175, 2276795), (185, 2153725), (217, 1836125), (259, 1538375), (397, 1003625), (775, 514115), (875, 455359), (925, 430745), (1085, 367225), (1147, 347375), (1295, 307675), (1985, 200725), (2779, 143375), (3875, 102823), (4625, 86149), (5425, 73445), (5735, 69475), (6475, 61535), (8029, 49625), (9925, 40145), (12307, 32375), (13895, 28675), (14689, 27125)]