221759944

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 529689600

約数和(自身を除く): 307929656

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 37, 38, 43, 56, 74, 76, 86, 131, 133, 148, 152, 172, 259, 262, 266, 296, 301, 344, 518, 524, 532, 602, 703, 817, 917, 1036, 1048, 1064, 1204, 1406, 1591, 1634, 1834, 2072, 2408, 2489, 2812, 3182, 3268, 3668, 4847, 4921, 4978, 5624, 5633, 5719, 6364, 6536, 7336, 9694, 9842, 9956, 11137, 11266, 11438, 12728, 17423, 19388, 19684, 19912, 22274, 22532, 22876, 30229, 33929, 34846, 38776, 39368, 39431, 44548, 45064, 45752, 60458, 67858, 69692, 78862, 89096, 92093, 107027, 120916, 135716, 139384, 157724, 184186, 208421, 211603, 214054, 241832, 271432, 315448, 368372, 416842, 423206, 428108, 644651, 736744, 749189, 833684, 846412, 856216, 1289302, 1458947, 1498378, 1667368, 1692824, 2578604, 2917894, 2996756, 3959999, 5157208, 5835788, 5993512, 7919998, 11671576, 15839996, 27719993, 31679992, 55439986, 110879972, 221759944]

約数ペア:

[(1, 221759944), (2, 110879972), (4, 55439986), (7, 31679992), (8, 27719993), (14, 15839996), (19, 11671576), (28, 7919998), (37, 5993512), (38, 5835788), (43, 5157208), (56, 3959999), (74, 2996756), (76, 2917894), (86, 2578604), (131, 1692824), (133, 1667368), (148, 1498378), (152, 1458947), (172, 1289302), (259, 856216), (262, 846412), (266, 833684), (296, 749189), (301, 736744), (344, 644651), (518, 428108), (524, 423206), (532, 416842), (602, 368372), (703, 315448), (817, 271432), (917, 241832), (1036, 214054), (1048, 211603), (1064, 208421), (1204, 184186), (1406, 157724), (1591, 139384), (1634, 135716), (1834, 120916), (2072, 107027), (2408, 92093), (2489, 89096), (2812, 78862), (3182, 69692), (3268, 67858), (3668, 60458), (4847, 45752), (4921, 45064), (4978, 44548), (5624, 39431), (5633, 39368), (5719, 38776), (6364, 34846), (6536, 33929), (7336, 30229), (9694, 22876), (9842, 22532), (9956, 22274), (11137, 19912), (11266, 19684), (11438, 19388), (12728, 17423)]