28578565

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 36868608

約数和(自身を除く): 8290043

約数列:

[1, 5, 19, 71, 95, 223, 355, 361, 1115, 1349, 1805, 4237, 6745, 15833, 21185, 25631, 79165, 80503, 128155, 300827, 402515, 1504135, 5715713, 28578565]

約数ペア:

[(1, 28578565), (5, 5715713), (19, 1504135), (71, 402515), (95, 300827), (223, 128155), (355, 80503), (361, 79165), (1115, 25631), (1349, 21185), (1805, 15833), (4237, 6745)]