28790520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1283}}^1$

素因数の和:1325

約数の個数: 128

約数和(自身を含む): 99843840

約数和(自身を除く): 71053320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 55, 60, 66, 68, 85, 88, 102, 110, 120, 132, 136, 165, 170, 187, 204, 220, 255, 264, 330, 340, 374, 408, 440, 510, 561, 660, 680, 748, 935, 1020, 1122, 1283, 1320, 1496, 1870, 2040, 2244, 2566, 2805, 3740, 3849, 4488, 5132, 5610, 6415, 7480, 7698, 10264, 11220, 12830, 14113, 15396, 19245, 21811, 22440, 25660, 28226, 30792, 38490, 42339, 43622, 51320, 56452, 65433, 70565, 76980, 84678, 87244, 109055, 112904, 130866, 141130, 153960, 169356, 174488, 211695, 218110, 239921, 261732, 282260, 327165, 338712, 423390, 436220, 479842, 523464, 564520, 654330, 719763, 846780, 872440, 959684, 1199605, 1308660, 1439526, 1693560, 1919368, 2399210, 2617320, 2879052, 3598815, 4798420, 5758104, 7197630, 9596840, 14395260, 28790520]

約数ペア:

[(1, 28790520), (2, 14395260), (3, 9596840), (4, 7197630), (5, 5758104), (6, 4798420), (8, 3598815), (10, 2879052), (11, 2617320), (12, 2399210), (15, 1919368), (17, 1693560), (20, 1439526), (22, 1308660), (24, 1199605), (30, 959684), (33, 872440), (34, 846780), (40, 719763), (44, 654330), (51, 564520), (55, 523464), (60, 479842), (66, 436220), (68, 423390), (85, 338712), (88, 327165), (102, 282260), (110, 261732), (120, 239921), (132, 218110), (136, 211695), (165, 174488), (170, 169356), (187, 153960), (204, 141130), (220, 130866), (255, 112904), (264, 109055), (330, 87244), (340, 84678), (374, 76980), (408, 70565), (440, 65433), (510, 56452), (561, 51320), (660, 43622), (680, 42339), (748, 38490), (935, 30792), (1020, 28226), (1122, 25660), (1283, 22440), (1320, 21811), (1496, 19245), (1870, 15396), (2040, 14113), (2244, 12830), (2566, 11220), (2805, 10264), (3740, 7698), (3849, 7480), (4488, 6415), (5132, 5610)]