13198925

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 17082240

約数和(自身を除く): 3883315

約数列:

[1, 5, 25, 41, 79, 163, 205, 395, 815, 1025, 1975, 3239, 4075, 6683, 12877, 16195, 33415, 64385, 80975, 167075, 321925, 527957, 2639785, 13198925]

約数ペア:

[(1, 13198925), (5, 2639785), (25, 527957), (41, 321925), (79, 167075), (163, 80975), (205, 64385), (395, 33415), (815, 16195), (1025, 12877), (1975, 6683), (3239, 4075)]