280803025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{797}}^1\times {\mathrm{829}}^1$

素因数の和:1653

約数の個数: 24

約数和(自身を含む): 369585720

約数和(自身を除く): 88782695

約数列:

[1, 5, 17, 25, 85, 425, 797, 829, 3985, 4145, 13549, 14093, 19925, 20725, 67745, 70465, 338725, 352325, 660713, 3303565, 11232121, 16517825, 56160605, 280803025]

約数ペア:

[(1, 280803025), (5, 56160605), (17, 16517825), (25, 11232121), (85, 3303565), (425, 660713), (797, 352325), (829, 338725), (3985, 70465), (4145, 67745), (13549, 20725), (14093, 19925)]