28007025

素因数分解:

$3^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{887}}^1$

素因数の和:1321

約数の個数: 24

約数和(自身を含む): 46467264

約数和(自身を除く): 18460239

約数列:

[1, 3, 5, 15, 25, 75, 421, 887, 1263, 2105, 2661, 4435, 6315, 10525, 13305, 22175, 31575, 66525, 373427, 1120281, 1867135, 5601405, 9335675, 28007025]

約数ペア:

[(1, 28007025), (3, 9335675), (5, 5601405), (15, 1867135), (25, 1120281), (75, 373427), (421, 66525), (887, 31575), (1263, 22175), (2105, 13305), (2661, 10525), (4435, 6315)]