28015728

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 160

約数和(自身を含む): 87494400

約数和(自身を除く): 59478672

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 19, 24, 26, 34, 38, 39, 48, 51, 52, 57, 68, 76, 78, 102, 104, 114, 136, 139, 152, 156, 204, 208, 221, 228, 247, 272, 278, 304, 312, 323, 408, 417, 442, 456, 494, 556, 624, 646, 663, 741, 816, 834, 884, 912, 969, 988, 1112, 1292, 1326, 1482, 1668, 1768, 1807, 1938, 1976, 2224, 2363, 2584, 2641, 2652, 2964, 3336, 3536, 3614, 3876, 3952, 4199, 4726, 5168, 5282, 5304, 5421, 5928, 6672, 7089, 7228, 7752, 7923, 8398, 9452, 10564, 10608, 10842, 11856, 12597, 14178, 14456, 15504, 15846, 16796, 18904, 21128, 21684, 25194, 28356, 28912, 30719, 31692, 33592, 34333, 37808, 42256, 43368, 44897, 50388, 56712, 61438, 63384, 67184, 68666, 86736, 89794, 92157, 100776, 102999, 113424, 122876, 126768, 134691, 137332, 179588, 184314, 201552, 205998, 245752, 269382, 274664, 359176, 368628, 411996, 491504, 538764, 549328, 583661, 718352, 737256, 823992, 1077528, 1167322, 1474512, 1647984, 1750983, 2155056, 2334644, 3501966, 4669288, 7003932, 9338576, 14007864, 28015728]

約数ペア:

[(1, 28015728), (2, 14007864), (3, 9338576), (4, 7003932), (6, 4669288), (8, 3501966), (12, 2334644), (13, 2155056), (16, 1750983), (17, 1647984), (19, 1474512), (24, 1167322), (26, 1077528), (34, 823992), (38, 737256), (39, 718352), (48, 583661), (51, 549328), (52, 538764), (57, 491504), (68, 411996), (76, 368628), (78, 359176), (102, 274664), (104, 269382), (114, 245752), (136, 205998), (139, 201552), (152, 184314), (156, 179588), (204, 137332), (208, 134691), (221, 126768), (228, 122876), (247, 113424), (272, 102999), (278, 100776), (304, 92157), (312, 89794), (323, 86736), (408, 68666), (417, 67184), (442, 63384), (456, 61438), (494, 56712), (556, 50388), (624, 44897), (646, 43368), (663, 42256), (741, 37808), (816, 34333), (834, 33592), (884, 31692), (912, 30719), (969, 28912), (988, 28356), (1112, 25194), (1292, 21684), (1326, 21128), (1482, 18904), (1668, 16796), (1768, 15846), (1807, 15504), (1938, 14456), (1976, 14178), (2224, 12597), (2363, 11856), (2584, 10842), (2641, 10608), (2652, 10564), (2964, 9452), (3336, 8398), (3536, 7923), (3614, 7752), (3876, 7228), (3952, 7089), (4199, 6672), (4726, 5928), (5168, 5421), (5282, 5304)]