15638975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 22900320

約数和(自身を除く): 7261345

約数列:

[1, 5, 11, 25, 29, 37, 53, 55, 145, 185, 265, 275, 319, 407, 583, 725, 925, 1073, 1325, 1537, 1595, 1961, 2035, 2915, 5365, 7685, 7975, 9805, 10175, 11803, 14575, 16907, 21571, 26825, 38425, 49025, 56869, 59015, 84535, 107855, 284345, 295075, 422675, 539275, 625559, 1421725, 3127795, 15638975]

約数ペア:

[(1, 15638975), (5, 3127795), (11, 1421725), (25, 625559), (29, 539275), (37, 422675), (53, 295075), (55, 284345), (145, 107855), (185, 84535), (265, 59015), (275, 56869), (319, 49025), (407, 38425), (583, 26825), (725, 21571), (925, 16907), (1073, 14575), (1325, 11803), (1537, 10175), (1595, 9805), (1961, 7975), (2035, 7685), (2915, 5365)]