28831275

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{353}}^1$

素因数の和:394

約数の個数: 72

約数和(自身を含む): 58381680

約数和(自身を除く): 29550405

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 121, 135, 165, 225, 275, 297, 353, 363, 495, 605, 675, 825, 1059, 1089, 1485, 1765, 1815, 2475, 3025, 3177, 3267, 3883, 5295, 5445, 7425, 8825, 9075, 9531, 11649, 15885, 16335, 19415, 26475, 27225, 34947, 42713, 47655, 58245, 79425, 81675, 97075, 104841, 128139, 174735, 213565, 238275, 291225, 384417, 524205, 640695, 873675, 1067825, 1153251, 1922085, 2621025, 3203475, 5766255, 9610425, 28831275]

約数ペア:

[(1, 28831275), (3, 9610425), (5, 5766255), (9, 3203475), (11, 2621025), (15, 1922085), (25, 1153251), (27, 1067825), (33, 873675), (45, 640695), (55, 524205), (75, 384417), (99, 291225), (121, 238275), (135, 213565), (165, 174735), (225, 128139), (275, 104841), (297, 97075), (353, 81675), (363, 79425), (495, 58245), (605, 47655), (675, 42713), (825, 34947), (1059, 27225), (1089, 26475), (1485, 19415), (1765, 16335), (1815, 15885), (2475, 11649), (3025, 9531), (3177, 9075), (3267, 8825), (3883, 7425), (5295, 5445)]