28871865

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 59844096

約数和(自身を除く): 30972231

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 45, 47, 51, 55, 73, 85, 99, 141, 153, 165, 187, 219, 235, 255, 365, 423, 495, 517, 561, 657, 705, 765, 799, 803, 935, 1095, 1241, 1551, 1683, 2115, 2397, 2409, 2585, 2805, 3285, 3431, 3723, 3995, 4015, 4653, 6205, 7191, 7227, 7755, 8415, 8789, 10293, 11169, 11985, 12045, 13651, 17155, 18615, 23265, 26367, 30879, 35955, 36135, 37741, 40953, 43945, 51465, 55845, 58327, 68255, 79101, 113223, 122859, 131835, 154395, 174981, 188705, 204765, 291635, 339669, 395505, 524943, 566115, 614295, 641597, 874905, 1698345, 1924791, 2624715, 3207985, 5774373, 9623955, 28871865]

約数ペア:

[(1, 28871865), (3, 9623955), (5, 5774373), (9, 3207985), (11, 2624715), (15, 1924791), (17, 1698345), (33, 874905), (45, 641597), (47, 614295), (51, 566115), (55, 524943), (73, 395505), (85, 339669), (99, 291635), (141, 204765), (153, 188705), (165, 174981), (187, 154395), (219, 131835), (235, 122859), (255, 113223), (365, 79101), (423, 68255), (495, 58327), (517, 55845), (561, 51465), (657, 43945), (705, 40953), (765, 37741), (799, 36135), (803, 35955), (935, 30879), (1095, 26367), (1241, 23265), (1551, 18615), (1683, 17155), (2115, 13651), (2397, 12045), (2409, 11985), (2585, 11169), (2805, 10293), (3285, 8789), (3431, 8415), (3723, 7755), (3995, 7227), (4015, 7191), (4653, 6205)]