978025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 24

約数和(自身を含む): 1339200

約数和(自身を除く): 361175

約数列:

[1, 5, 19, 25, 29, 71, 95, 145, 355, 475, 551, 725, 1349, 1775, 2059, 2755, 6745, 10295, 13775, 33725, 39121, 51475, 195605, 978025]

約数ペア:

[(1, 978025), (5, 195605), (19, 51475), (25, 39121), (29, 33725), (71, 13775), (95, 10295), (145, 6745), (355, 2755), (475, 2059), (551, 1775), (725, 1349)]