201991328

素因数分解:

$2^5\times 7^4\times {\mathrm{11}}^1\times {\mathrm{239}}^1$

素因数の和:288

約数の個数: 120

約数和(自身を含む): 508213440

約数和(自身を除く): 306222112

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 224, 239, 308, 343, 352, 392, 478, 539, 616, 686, 784, 956, 1078, 1232, 1372, 1568, 1673, 1912, 2156, 2401, 2464, 2629, 2744, 3346, 3773, 3824, 4312, 4802, 5258, 5488, 6692, 7546, 7648, 8624, 9604, 10516, 10976, 11711, 13384, 15092, 17248, 18403, 19208, 21032, 23422, 26411, 26768, 30184, 36806, 38416, 42064, 46844, 52822, 53536, 60368, 73612, 76832, 81977, 84128, 93688, 105644, 120736, 128821, 147224, 163954, 187376, 211288, 257642, 294448, 327908, 374752, 422576, 515284, 573839, 588896, 655816, 845152, 901747, 1030568, 1147678, 1311632, 1803494, 2061136, 2295356, 2623264, 3606988, 4122272, 4590712, 6312229, 7213976, 9181424, 12624458, 14427952, 18362848, 25248916, 28855904, 50497832, 100995664, 201991328]

約数ペア:

[(1, 201991328), (2, 100995664), (4, 50497832), (7, 28855904), (8, 25248916), (11, 18362848), (14, 14427952), (16, 12624458), (22, 9181424), (28, 7213976), (32, 6312229), (44, 4590712), (49, 4122272), (56, 3606988), (77, 2623264), (88, 2295356), (98, 2061136), (112, 1803494), (154, 1311632), (176, 1147678), (196, 1030568), (224, 901747), (239, 845152), (308, 655816), (343, 588896), (352, 573839), (392, 515284), (478, 422576), (539, 374752), (616, 327908), (686, 294448), (784, 257642), (956, 211288), (1078, 187376), (1232, 163954), (1372, 147224), (1568, 128821), (1673, 120736), (1912, 105644), (2156, 93688), (2401, 84128), (2464, 81977), (2629, 76832), (2744, 73612), (3346, 60368), (3773, 53536), (3824, 52822), (4312, 46844), (4802, 42064), (5258, 38416), (5488, 36806), (6692, 30184), (7546, 26768), (7648, 26411), (8624, 23422), (9604, 21032), (10516, 19208), (10976, 18403), (11711, 17248), (13384, 15092)]