245220976

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:351

約数の個数: 160

約数和(自身を含む): 650958336

約数和(自身を除く): 405737360

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 61, 77, 88, 91, 104, 112, 122, 143, 154, 176, 182, 208, 244, 251, 286, 308, 364, 427, 488, 502, 572, 616, 671, 728, 793, 854, 976, 1001, 1004, 1144, 1232, 1342, 1456, 1586, 1708, 1757, 2002, 2008, 2288, 2684, 2761, 3172, 3263, 3416, 3514, 4004, 4016, 4697, 5368, 5522, 5551, 6344, 6526, 6832, 7028, 8008, 8723, 9394, 10736, 11044, 11102, 12688, 13052, 14056, 15311, 16016, 17446, 18788, 19327, 22088, 22204, 22841, 26104, 28112, 30622, 34892, 35893, 37576, 38654, 44176, 44408, 45682, 52208, 61061, 61244, 69784, 71786, 75152, 77308, 88816, 91364, 107177, 122122, 122488, 139568, 143572, 154616, 168421, 182728, 199043, 214354, 244244, 244976, 251251, 287144, 309232, 336842, 365456, 398086, 428708, 488488, 502502, 574288, 673684, 796172, 857416, 976976, 1005004, 1178947, 1347368, 1393301, 1592344, 1714832, 2010008, 2189473, 2357894, 2694736, 2786602, 3184688, 4020016, 4378946, 4715788, 5573204, 8757892, 9431576, 11146408, 15326311, 17515784, 18863152, 22292816, 30652622, 35031568, 61305244, 122610488, 245220976]

約数ペア:

[(1, 245220976), (2, 122610488), (4, 61305244), (7, 35031568), (8, 30652622), (11, 22292816), (13, 18863152), (14, 17515784), (16, 15326311), (22, 11146408), (26, 9431576), (28, 8757892), (44, 5573204), (52, 4715788), (56, 4378946), (61, 4020016), (77, 3184688), (88, 2786602), (91, 2694736), (104, 2357894), (112, 2189473), (122, 2010008), (143, 1714832), (154, 1592344), (176, 1393301), (182, 1347368), (208, 1178947), (244, 1005004), (251, 976976), (286, 857416), (308, 796172), (364, 673684), (427, 574288), (488, 502502), (502, 488488), (572, 428708), (616, 398086), (671, 365456), (728, 336842), (793, 309232), (854, 287144), (976, 251251), (1001, 244976), (1004, 244244), (1144, 214354), (1232, 199043), (1342, 182728), (1456, 168421), (1586, 154616), (1708, 143572), (1757, 139568), (2002, 122488), (2008, 122122), (2288, 107177), (2684, 91364), (2761, 88816), (3172, 77308), (3263, 75152), (3416, 71786), (3514, 69784), (4004, 61244), (4016, 61061), (4697, 52208), (5368, 45682), (5522, 44408), (5551, 44176), (6344, 38654), (6526, 37576), (6832, 35893), (7028, 34892), (8008, 30622), (8723, 28112), (9394, 26104), (10736, 22841), (11044, 22204), (11102, 22088), (12688, 19327), (13052, 18788), (14056, 17446), (15311, 16016)]