18640235

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 24688800

約数和(自身を除く): 6048565

約数列:

[1, 5, 19, 23, 95, 115, 361, 437, 449, 1805, 2185, 2245, 8303, 8531, 10327, 41515, 42655, 51635, 162089, 196213, 810445, 981065, 3728047, 18640235]

約数ペア:

[(1, 18640235), (5, 3728047), (19, 981065), (23, 810445), (95, 196213), (115, 162089), (361, 51635), (437, 42655), (449, 41515), (1805, 10327), (2185, 8531), (2245, 8303)]