20389298176

素因数分解:

$2^{18}\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:273

約数の個数: 152

約数和(自身を含む): 45566831744

約数和(自身を除く): 25177533568

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 193, 208, 248, 256, 386, 403, 416, 496, 512, 772, 806, 832, 992, 1024, 1544, 1612, 1664, 1984, 2048, 2509, 3088, 3224, 3328, 3968, 4096, 5018, 5983, 6176, 6448, 6656, 7936, 8192, 10036, 11966, 12352, 12896, 13312, 15872, 16384, 20072, 23932, 24704, 25792, 26624, 31744, 32768, 40144, 47864, 49408, 51584, 53248, 63488, 65536, 77779, 80288, 95728, 98816, 103168, 106496, 126976, 131072, 155558, 160576, 191456, 197632, 206336, 212992, 253952, 262144, 311116, 321152, 382912, 395264, 412672, 425984, 507904, 622232, 642304, 765824, 790528, 825344, 851968, 1015808, 1244464, 1284608, 1531648, 1581056, 1650688, 1703936, 2031616, 2488928, 2569216, 3063296, 3162112, 3301376, 3407872, 4063232, 4977856, 5138432, 6126592, 6324224, 6602752, 8126464, 9955712, 10276864, 12253184, 12648448, 13205504, 19911424, 20553728, 24506368, 25296896, 26411008, 39822848, 41107456, 49012736, 50593792, 52822016, 79645696, 82214912, 98025472, 105644032, 159291392, 164429824, 196050944, 318582784, 328859648, 392101888, 637165568, 657719296, 784203776, 1274331136, 1568407552, 2548662272, 5097324544, 10194649088, 20389298176]

約数ペア:

[(1, 20389298176), (2, 10194649088), (4, 5097324544), (8, 2548662272), (13, 1568407552), (16, 1274331136), (26, 784203776), (31, 657719296), (32, 637165568), (52, 392101888), (62, 328859648), (64, 318582784), (104, 196050944), (124, 164429824), (128, 159291392), (193, 105644032), (208, 98025472), (248, 82214912), (256, 79645696), (386, 52822016), (403, 50593792), (416, 49012736), (496, 41107456), (512, 39822848), (772, 26411008), (806, 25296896), (832, 24506368), (992, 20553728), (1024, 19911424), (1544, 13205504), (1612, 12648448), (1664, 12253184), (1984, 10276864), (2048, 9955712), (2509, 8126464), (3088, 6602752), (3224, 6324224), (3328, 6126592), (3968, 5138432), (4096, 4977856), (5018, 4063232), (5983, 3407872), (6176, 3301376), (6448, 3162112), (6656, 3063296), (7936, 2569216), (8192, 2488928), (10036, 2031616), (11966, 1703936), (12352, 1650688), (12896, 1581056), (13312, 1531648), (15872, 1284608), (16384, 1244464), (20072, 1015808), (23932, 851968), (24704, 825344), (25792, 790528), (26624, 765824), (31744, 642304), (32768, 622232), (40144, 507904), (47864, 425984), (49408, 412672), (51584, 395264), (53248, 382912), (63488, 321152), (65536, 311116), (77779, 262144), (80288, 253952), (95728, 212992), (98816, 206336), (103168, 197632), (106496, 191456), (126976, 160576), (131072, 155558)]