28310905

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 12331655

約数列:

[1, 5, 7, 31, 35, 97, 155, 217, 269, 485, 679, 1085, 1345, 1883, 3007, 3395, 8339, 9415, 15035, 21049, 26093, 41695, 58373, 105245, 130465, 182651, 291865, 808883, 913255, 4044415, 5662181, 28310905]

約数ペア:

[(1, 28310905), (5, 5662181), (7, 4044415), (31, 913255), (35, 808883), (97, 291865), (155, 182651), (217, 130465), (269, 105245), (485, 58373), (679, 41695), (1085, 26093), (1345, 21049), (1883, 15035), (3007, 9415), (3395, 8339)]