28957236

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^3\times {\mathrm{37}}^1$

素因数の和:91

約数の個数: 144

約数和(自身を含む): 88788672

約数和(自身を除く): 59831436

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 37, 42, 44, 49, 66, 74, 77, 84, 98, 111, 121, 132, 147, 148, 154, 196, 222, 231, 242, 259, 294, 308, 363, 407, 444, 462, 484, 518, 539, 588, 726, 777, 814, 847, 924, 1036, 1078, 1221, 1331, 1452, 1554, 1617, 1628, 1694, 1813, 2156, 2442, 2541, 2662, 2849, 3108, 3234, 3388, 3626, 3993, 4477, 4884, 5082, 5324, 5439, 5698, 5929, 6468, 7252, 7986, 8547, 8954, 9317, 10164, 10878, 11396, 11858, 13431, 15972, 17094, 17787, 17908, 18634, 19943, 21756, 23716, 26862, 27951, 31339, 34188, 35574, 37268, 39886, 49247, 53724, 55902, 59829, 62678, 65219, 71148, 79772, 94017, 98494, 111804, 119658, 125356, 130438, 147741, 188034, 195657, 196988, 219373, 239316, 260876, 295482, 344729, 376068, 391314, 438746, 590964, 658119, 689458, 782628, 877492, 1034187, 1316238, 1378916, 2068374, 2413103, 2632476, 4136748, 4826206, 7239309, 9652412, 14478618, 28957236]

約数ペア:

[(1, 28957236), (2, 14478618), (3, 9652412), (4, 7239309), (6, 4826206), (7, 4136748), (11, 2632476), (12, 2413103), (14, 2068374), (21, 1378916), (22, 1316238), (28, 1034187), (33, 877492), (37, 782628), (42, 689458), (44, 658119), (49, 590964), (66, 438746), (74, 391314), (77, 376068), (84, 344729), (98, 295482), (111, 260876), (121, 239316), (132, 219373), (147, 196988), (148, 195657), (154, 188034), (196, 147741), (222, 130438), (231, 125356), (242, 119658), (259, 111804), (294, 98494), (308, 94017), (363, 79772), (407, 71148), (444, 65219), (462, 62678), (484, 59829), (518, 55902), (539, 53724), (588, 49247), (726, 39886), (777, 37268), (814, 35574), (847, 34188), (924, 31339), (1036, 27951), (1078, 26862), (1221, 23716), (1331, 21756), (1452, 19943), (1554, 18634), (1617, 17908), (1628, 17787), (1694, 17094), (1813, 15972), (2156, 13431), (2442, 11858), (2541, 11396), (2662, 10878), (2849, 10164), (3108, 9317), (3234, 8954), (3388, 8547), (3626, 7986), (3993, 7252), (4477, 6468), (4884, 5929), (5082, 5698), (5324, 5439)]