26880825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{727}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 21866055

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 75, 85, 87, 145, 255, 425, 435, 493, 725, 727, 1275, 1479, 2175, 2181, 2465, 3635, 7395, 10905, 12325, 12359, 18175, 21083, 36975, 37077, 54525, 61795, 63249, 105415, 185385, 308975, 316245, 358411, 527075, 926925, 1075233, 1581225, 1792055, 5376165, 8960275, 26880825]

約数ペア:

[(1, 26880825), (3, 8960275), (5, 5376165), (15, 1792055), (17, 1581225), (25, 1075233), (29, 926925), (51, 527075), (75, 358411), (85, 316245), (87, 308975), (145, 185385), (255, 105415), (425, 63249), (435, 61795), (493, 54525), (725, 37077), (727, 36975), (1275, 21083), (1479, 18175), (2175, 12359), (2181, 12325), (2465, 10905), (3635, 7395)]