20178456

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 56784240

約数和(自身を除く): 36605784

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 19, 24, 34, 38, 51, 57, 68, 76, 102, 114, 136, 137, 152, 204, 228, 274, 323, 361, 408, 411, 456, 548, 646, 722, 822, 969, 1083, 1096, 1292, 1444, 1644, 1938, 2166, 2329, 2584, 2603, 2888, 3288, 3876, 4332, 4658, 5206, 6137, 6987, 7752, 7809, 8664, 9316, 10412, 12274, 13974, 15618, 18411, 18632, 20824, 24548, 27948, 31236, 36822, 44251, 49096, 49457, 55896, 62472, 73644, 88502, 98914, 132753, 147288, 148371, 177004, 197828, 265506, 296742, 354008, 395656, 531012, 593484, 840769, 1062024, 1186968, 1681538, 2522307, 3363076, 5044614, 6726152, 10089228, 20178456]

約数ペア:

[(1, 20178456), (2, 10089228), (3, 6726152), (4, 5044614), (6, 3363076), (8, 2522307), (12, 1681538), (17, 1186968), (19, 1062024), (24, 840769), (34, 593484), (38, 531012), (51, 395656), (57, 354008), (68, 296742), (76, 265506), (102, 197828), (114, 177004), (136, 148371), (137, 147288), (152, 132753), (204, 98914), (228, 88502), (274, 73644), (323, 62472), (361, 55896), (408, 49457), (411, 49096), (456, 44251), (548, 36822), (646, 31236), (722, 27948), (822, 24548), (969, 20824), (1083, 18632), (1096, 18411), (1292, 15618), (1444, 13974), (1644, 12274), (1938, 10412), (2166, 9316), (2329, 8664), (2584, 7809), (2603, 7752), (2888, 6987), (3288, 6137), (3876, 5206), (4332, 4658)]