28125135

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{5531}}^1$

素因数の和:5655

約数の個数: 24

約数和(自身を含む): 49190544

約数和(自身を除く): 21065409

約数列:

[1, 3, 5, 9, 15, 45, 113, 339, 565, 1017, 1695, 5085, 5531, 16593, 27655, 49779, 82965, 248895, 625003, 1875009, 3125015, 5625027, 9375045, 28125135]

約数ペア:

[(1, 28125135), (3, 9375045), (5, 5625027), (9, 3125015), (15, 1875009), (45, 625003), (113, 248895), (339, 82965), (565, 49779), (1017, 27655), (1695, 16593), (5085, 5531)]