31390478

素因数分解:

$2^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:225

約数の個数: 48

約数和(自身を含む): 57250800

約数和(自身を除く): 25860322

約数列:

[1, 2, 7, 14, 49, 59, 61, 89, 98, 118, 122, 178, 413, 427, 623, 826, 854, 1246, 2891, 2989, 3599, 4361, 5251, 5429, 5782, 5978, 7198, 8722, 10502, 10858, 25193, 36757, 38003, 50386, 73514, 76006, 176351, 257299, 266021, 320311, 352702, 514598, 532042, 640622, 2242177, 4484354, 15695239, 31390478]

約数ペア:

[(1, 31390478), (2, 15695239), (7, 4484354), (14, 2242177), (49, 640622), (59, 532042), (61, 514598), (89, 352702), (98, 320311), (118, 266021), (122, 257299), (178, 176351), (413, 76006), (427, 73514), (623, 50386), (826, 38003), (854, 36757), (1246, 25193), (2891, 10858), (2989, 10502), (3599, 8722), (4361, 7198), (5251, 5978), (5429, 5782)]