17927775

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 35109360

約数和(自身を除く): 17181585

約数列:

[1, 3, 5, 9, 15, 17, 25, 43, 45, 51, 75, 85, 109, 129, 153, 215, 225, 255, 327, 387, 425, 545, 645, 731, 765, 981, 1075, 1275, 1635, 1853, 1935, 2193, 2725, 3225, 3655, 3825, 4687, 4905, 5559, 6579, 8175, 9265, 9675, 10965, 14061, 16677, 18275, 23435, 24525, 27795, 32895, 42183, 46325, 54825, 70305, 79679, 83385, 117175, 138975, 164475, 210915, 239037, 351525, 398395, 416925, 717111, 1054575, 1195185, 1991975, 3585555, 5975925, 17927775]

約数ペア:

[(1, 17927775), (3, 5975925), (5, 3585555), (9, 1991975), (15, 1195185), (17, 1054575), (25, 717111), (43, 416925), (45, 398395), (51, 351525), (75, 239037), (85, 210915), (109, 164475), (129, 138975), (153, 117175), (215, 83385), (225, 79679), (255, 70305), (327, 54825), (387, 46325), (425, 42183), (545, 32895), (645, 27795), (731, 24525), (765, 23435), (981, 18275), (1075, 16677), (1275, 14061), (1635, 10965), (1853, 9675), (1935, 9265), (2193, 8175), (2725, 6579), (3225, 5559), (3655, 4905), (3825, 4687)]