280115225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{27803}}^1$

素因数の和:27857

約数の個数: 24

約数和(自身を含む): 386141952

約数和(自身を除く): 106026727

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 10075, 27803, 139015, 361439, 695075, 861893, 1807195, 4309465, 9035975, 11204609, 21547325, 56023045, 280115225]

約数ペア:

[(1, 280115225), (5, 56023045), (13, 21547325), (25, 11204609), (31, 9035975), (65, 4309465), (155, 1807195), (325, 861893), (403, 695075), (775, 361439), (2015, 139015), (10075, 27803)]