9987425

素因数分解:

$5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:318

約数の個数: 36

約数和(自身を含む): 14927616

約数和(自身を除く): 4940191

約数列:

[1, 5, 7, 25, 31, 35, 49, 155, 175, 217, 245, 263, 775, 1085, 1225, 1315, 1519, 1841, 5425, 6575, 7595, 8153, 9205, 12887, 37975, 40765, 46025, 57071, 64435, 203825, 285355, 322175, 399497, 1426775, 1997485, 9987425]

約数ペア:

[(1, 9987425), (5, 1997485), (7, 1426775), (25, 399497), (31, 322175), (35, 285355), (49, 203825), (155, 64435), (175, 57071), (217, 46025), (245, 40765), (263, 37975), (775, 12887), (1085, 9205), (1225, 8153), (1315, 7595), (1519, 6575), (1841, 5425)]