28857114

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:173

約数の個数: 128

約数和(自身を含む): 78140160

約数和(自身を除く): 49283046

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 27, 33, 37, 39, 54, 66, 74, 78, 99, 101, 111, 117, 143, 198, 202, 222, 234, 286, 297, 303, 333, 351, 407, 429, 481, 594, 606, 666, 702, 814, 858, 909, 962, 999, 1111, 1221, 1287, 1313, 1443, 1818, 1998, 2222, 2442, 2574, 2626, 2727, 2886, 3333, 3663, 3737, 3861, 3939, 4329, 5291, 5454, 6666, 7326, 7474, 7722, 7878, 8658, 9999, 10582, 10989, 11211, 11817, 12987, 14443, 15873, 19998, 21978, 22422, 23634, 25974, 28886, 29997, 31746, 33633, 35451, 41107, 43329, 47619, 48581, 59994, 67266, 70902, 82214, 86658, 95238, 97162, 100899, 123321, 129987, 142857, 145743, 201798, 246642, 259974, 285714, 291486, 369963, 389961, 437229, 534391, 739926, 779922, 874458, 1068782, 1109889, 1311687, 1603173, 2219778, 2623374, 3206346, 4809519, 9619038, 14428557, 28857114]

約数ペア:

[(1, 28857114), (2, 14428557), (3, 9619038), (6, 4809519), (9, 3206346), (11, 2623374), (13, 2219778), (18, 1603173), (22, 1311687), (26, 1109889), (27, 1068782), (33, 874458), (37, 779922), (39, 739926), (54, 534391), (66, 437229), (74, 389961), (78, 369963), (99, 291486), (101, 285714), (111, 259974), (117, 246642), (143, 201798), (198, 145743), (202, 142857), (222, 129987), (234, 123321), (286, 100899), (297, 97162), (303, 95238), (333, 86658), (351, 82214), (407, 70902), (429, 67266), (481, 59994), (594, 48581), (606, 47619), (666, 43329), (702, 41107), (814, 35451), (858, 33633), (909, 31746), (962, 29997), (999, 28886), (1111, 25974), (1221, 23634), (1287, 22422), (1313, 21978), (1443, 19998), (1818, 15873), (1998, 14443), (2222, 12987), (2442, 11817), (2574, 11211), (2626, 10989), (2727, 10582), (2886, 9999), (3333, 8658), (3663, 7878), (3737, 7722), (3861, 7474), (3939, 7326), (4329, 6666), (5291, 5454)]