28930775

素因数分解:

$5^2\times {\mathrm{61}}^2\times {\mathrm{311}}^1$

素因数の和:443

約数の個数: 18

約数和(自身を含む): 36589176

約数和(自身を除く): 7658401

約数列:

[1, 5, 25, 61, 305, 311, 1525, 1555, 3721, 7775, 18605, 18971, 93025, 94855, 474275, 1157231, 5786155, 28930775]

約数ペア:

[(1, 28930775), (5, 5786155), (25, 1157231), (61, 474275), (305, 94855), (311, 93025), (1525, 18971), (1555, 18605), (3721, 7775)]