28744975

素因数分解:

$5^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1979}}^1$

素因数の和:2079

約数の個数: 24

約数和(自身を含む): 41247360

約数和(自身を除く): 12502385

約数列:

[1, 5, 7, 25, 35, 83, 175, 415, 581, 1979, 2075, 2905, 9895, 13853, 14525, 49475, 69265, 164257, 346325, 821285, 1149799, 4106425, 5748995, 28744975]

約数ペア:

[(1, 28744975), (5, 5748995), (7, 4106425), (25, 1149799), (35, 821285), (83, 346325), (175, 164257), (415, 69265), (581, 49475), (1979, 14525), (2075, 13853), (2905, 9895)]