28468880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:225

約数の個数: 120

約数和(自身を含む): 77479416

約数和(自身を除く): 49010536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 121, 136, 170, 173, 176, 187, 220, 242, 272, 340, 346, 374, 440, 484, 605, 680, 692, 748, 865, 880, 935, 968, 1210, 1360, 1384, 1496, 1730, 1870, 1903, 1936, 2057, 2420, 2768, 2941, 2992, 3460, 3740, 3806, 4114, 4840, 5882, 6920, 7480, 7612, 8228, 9515, 9680, 10285, 11764, 13840, 14705, 14960, 15224, 16456, 19030, 20570, 20933, 23528, 29410, 30448, 32351, 32912, 38060, 41140, 41866, 47056, 58820, 64702, 76120, 82280, 83732, 104665, 117640, 129404, 152240, 161755, 164560, 167464, 209330, 235280, 258808, 323510, 334928, 355861, 418660, 517616, 647020, 711722, 837320, 1294040, 1423444, 1674640, 1779305, 2588080, 2846888, 3558610, 5693776, 7117220, 14234440, 28468880]

約数ペア:

[(1, 28468880), (2, 14234440), (4, 7117220), (5, 5693776), (8, 3558610), (10, 2846888), (11, 2588080), (16, 1779305), (17, 1674640), (20, 1423444), (22, 1294040), (34, 837320), (40, 711722), (44, 647020), (55, 517616), (68, 418660), (80, 355861), (85, 334928), (88, 323510), (110, 258808), (121, 235280), (136, 209330), (170, 167464), (173, 164560), (176, 161755), (187, 152240), (220, 129404), (242, 117640), (272, 104665), (340, 83732), (346, 82280), (374, 76120), (440, 64702), (484, 58820), (605, 47056), (680, 41866), (692, 41140), (748, 38060), (865, 32912), (880, 32351), (935, 30448), (968, 29410), (1210, 23528), (1360, 20933), (1384, 20570), (1496, 19030), (1730, 16456), (1870, 15224), (1903, 14960), (1936, 14705), (2057, 13840), (2420, 11764), (2768, 10285), (2941, 9680), (2992, 9515), (3460, 8228), (3740, 7612), (3806, 7480), (4114, 6920), (4840, 5882)]