13278925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:573

約数の個数: 24

約数和(自身を含む): 18168480

約数和(自身を除く): 4889555

約数列:

[1, 5, 11, 25, 55, 109, 275, 443, 545, 1199, 2215, 2725, 4873, 5995, 11075, 24365, 29975, 48287, 121825, 241435, 531157, 1207175, 2655785, 13278925]

約数ペア:

[(1, 13278925), (5, 2655785), (11, 1207175), (25, 531157), (55, 241435), (109, 121825), (275, 48287), (443, 29975), (545, 24365), (1199, 11075), (2215, 5995), (2725, 4873)]