18334525

素因数分解:

$5^2\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:91

約数の個数: 48

約数和(自身を含む): 27230400

約数和(自身を除く): 8895875

約数列:

[1, 5, 11, 19, 25, 29, 55, 95, 121, 145, 209, 275, 319, 475, 551, 605, 725, 1045, 1331, 1595, 2299, 2755, 3025, 3509, 5225, 6061, 6655, 7975, 11495, 13775, 17545, 25289, 30305, 33275, 38599, 57475, 66671, 87725, 126445, 151525, 192995, 333355, 632225, 733381, 964975, 1666775, 3666905, 18334525]

約数ペア:

[(1, 18334525), (5, 3666905), (11, 1666775), (19, 964975), (25, 733381), (29, 632225), (55, 333355), (95, 192995), (121, 151525), (145, 126445), (209, 87725), (275, 66671), (319, 57475), (475, 38599), (551, 33275), (605, 30305), (725, 25289), (1045, 17545), (1331, 13775), (1595, 11495), (2299, 7975), (2755, 6655), (3025, 6061), (3509, 5225)]