209840488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 489968640

約数和(自身を除く): 280128152

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 31, 44, 52, 61, 62, 88, 97, 104, 122, 124, 143, 194, 244, 248, 286, 341, 388, 403, 488, 572, 671, 682, 776, 793, 806, 1067, 1144, 1261, 1342, 1364, 1586, 1612, 1891, 2134, 2522, 2684, 2728, 3007, 3172, 3224, 3782, 4268, 4433, 5044, 5368, 5917, 6014, 6344, 7564, 8536, 8723, 8866, 10088, 11834, 12028, 13871, 15128, 17446, 17732, 20801, 23668, 24056, 24583, 27742, 33077, 34892, 35464, 39091, 41602, 47336, 49166, 55484, 65087, 66154, 69784, 76921, 78182, 83204, 98332, 110968, 130174, 132308, 153842, 156364, 166408, 183427, 196664, 260348, 264616, 270413, 307684, 312728, 366854, 430001, 520696, 540826, 615368, 733708, 846131, 860002, 1081652, 1467416, 1692262, 1720004, 2017697, 2163304, 2384551, 3384524, 3440008, 4035394, 4769102, 6769048, 8070788, 9538204, 16141576, 19076408, 26230061, 52460122, 104920244, 209840488]

約数ペア:

[(1, 209840488), (2, 104920244), (4, 52460122), (8, 26230061), (11, 19076408), (13, 16141576), (22, 9538204), (26, 8070788), (31, 6769048), (44, 4769102), (52, 4035394), (61, 3440008), (62, 3384524), (88, 2384551), (97, 2163304), (104, 2017697), (122, 1720004), (124, 1692262), (143, 1467416), (194, 1081652), (244, 860002), (248, 846131), (286, 733708), (341, 615368), (388, 540826), (403, 520696), (488, 430001), (572, 366854), (671, 312728), (682, 307684), (776, 270413), (793, 264616), (806, 260348), (1067, 196664), (1144, 183427), (1261, 166408), (1342, 156364), (1364, 153842), (1586, 132308), (1612, 130174), (1891, 110968), (2134, 98332), (2522, 83204), (2684, 78182), (2728, 76921), (3007, 69784), (3172, 66154), (3224, 65087), (3782, 55484), (4268, 49166), (4433, 47336), (5044, 41602), (5368, 39091), (5917, 35464), (6014, 34892), (6344, 33077), (7564, 27742), (8536, 24583), (8723, 24056), (8866, 23668), (10088, 20801), (11834, 17732), (12028, 17446), (13871, 15128)]