28362725

素因数分解:

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

素因数の和:158

約数の個数: 36

約数和(自身を含む): 38881440

約数和(自身を除く): 10518715

約数列:

[1, 5, 19, 25, 29, 71, 95, 145, 355, 475, 551, 725, 841, 1349, 1775, 2059, 2755, 4205, 6745, 10295, 13775, 15979, 21025, 33725, 39121, 51475, 59711, 79895, 195605, 298555, 399475, 978025, 1134509, 1492775, 5672545, 28362725]

約数ペア:

[(1, 28362725), (5, 5672545), (19, 1492775), (25, 1134509), (29, 978025), (71, 399475), (95, 298555), (145, 195605), (355, 79895), (475, 59711), (551, 51475), (725, 39121), (841, 33725), (1349, 21025), (1775, 15979), (2059, 13775), (2755, 10295), (4205, 6745)]