27991275

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1511}}^1$

素因数の和:1556

約数の個数: 48

約数和(自身を含む): 52496640

約数和(自身を除く): 24505365

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1235, 1425, 1511, 3705, 4533, 6175, 7555, 18525, 19643, 22665, 28709, 37775, 58929, 86127, 98215, 113325, 143545, 294645, 373217, 430635, 491075, 717725, 1119651, 1473225, 1866085, 2153175, 5598255, 9330425, 27991275]

約数ペア:

[(1, 27991275), (3, 9330425), (5, 5598255), (13, 2153175), (15, 1866085), (19, 1473225), (25, 1119651), (39, 717725), (57, 491075), (65, 430635), (75, 373217), (95, 294645), (195, 143545), (247, 113325), (285, 98215), (325, 86127), (475, 58929), (741, 37775), (975, 28709), (1235, 22665), (1425, 19643), (1511, 18525), (3705, 7555), (4533, 6175)]