28975905

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{773}}^1$

素因数の和:815

約数の個数: 72

約数和(自身を含む): 61941672

約数和(自身を除く): 32965767

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 49, 51, 63, 85, 105, 119, 147, 153, 245, 255, 315, 357, 441, 595, 735, 765, 773, 833, 1071, 1785, 2205, 2319, 2499, 3865, 4165, 5355, 5411, 6957, 7497, 11595, 12495, 13141, 16233, 27055, 34785, 37485, 37877, 39423, 48699, 65705, 81165, 91987, 113631, 118269, 189385, 197115, 243495, 275961, 340893, 459935, 568155, 591345, 643909, 827883, 1379805, 1704465, 1931727, 3219545, 4139415, 5795181, 9658635, 28975905]

約数ペア:

[(1, 28975905), (3, 9658635), (5, 5795181), (7, 4139415), (9, 3219545), (15, 1931727), (17, 1704465), (21, 1379805), (35, 827883), (45, 643909), (49, 591345), (51, 568155), (63, 459935), (85, 340893), (105, 275961), (119, 243495), (147, 197115), (153, 189385), (245, 118269), (255, 113631), (315, 91987), (357, 81165), (441, 65705), (595, 48699), (735, 39423), (765, 37877), (773, 37485), (833, 34785), (1071, 27055), (1785, 16233), (2205, 13141), (2319, 12495), (2499, 11595), (3865, 7497), (4165, 6957), (5355, 5411)]