12640775

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{607}}^1$

素因数の和:648

約数の個数: 36

約数和(自身を含む): 19338048

約数和(自身を除く): 6697273

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 175, 245, 425, 595, 607, 833, 1225, 2975, 3035, 4165, 4249, 10319, 15175, 20825, 21245, 29743, 51595, 72233, 106225, 148715, 257975, 361165, 505631, 743575, 1805825, 2528155, 12640775]

約数ペア:

[(1, 12640775), (5, 2528155), (7, 1805825), (17, 743575), (25, 505631), (35, 361165), (49, 257975), (85, 148715), (119, 106225), (175, 72233), (245, 51595), (425, 29743), (595, 21245), (607, 20825), (833, 15175), (1225, 10319), (2975, 4249), (3035, 4165)]