51404665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 69543936

約数和(自身を除く): 18139271

約数列:

[1, 5, 13, 31, 65, 97, 155, 263, 403, 485, 1261, 1315, 2015, 3007, 3419, 6305, 8153, 15035, 17095, 25511, 39091, 40765, 105989, 127555, 195455, 331643, 529945, 790841, 1658215, 3954205, 10280933, 51404665]

約数ペア:

[(1, 51404665), (5, 10280933), (13, 3954205), (31, 1658215), (65, 790841), (97, 529945), (155, 331643), (263, 195455), (403, 127555), (485, 105989), (1261, 40765), (1315, 39091), (2015, 25511), (3007, 17095), (3419, 15035), (6305, 8153)]