81017325

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{359}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 156686400

約数和(自身を除く): 75669075

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 59, 75, 85, 153, 177, 225, 255, 295, 359, 425, 531, 765, 885, 1003, 1077, 1275, 1475, 1795, 2655, 3009, 3231, 3825, 4425, 5015, 5385, 6103, 8975, 9027, 13275, 15045, 16155, 18309, 21181, 25075, 26925, 30515, 45135, 54927, 63543, 75225, 80775, 91545, 105905, 152575, 190629, 225675, 274635, 317715, 360077, 457725, 529525, 953145, 1080231, 1373175, 1588575, 1800385, 3240693, 4765725, 5401155, 9001925, 16203465, 27005775, 81017325]

約数ペア:

[(1, 81017325), (3, 27005775), (5, 16203465), (9, 9001925), (15, 5401155), (17, 4765725), (25, 3240693), (45, 1800385), (51, 1588575), (59, 1373175), (75, 1080231), (85, 953145), (153, 529525), (177, 457725), (225, 360077), (255, 317715), (295, 274635), (359, 225675), (425, 190629), (531, 152575), (765, 105905), (885, 91545), (1003, 80775), (1077, 75225), (1275, 63543), (1475, 54927), (1795, 45135), (2655, 30515), (3009, 26925), (3231, 25075), (3825, 21181), (4425, 18309), (5015, 16155), (5385, 15045), (6103, 13275), (8975, 9027)]