647671808

素因数分解:

$2^{12}\times 7^3\times {\mathrm{461}}^1$

素因数の和:506

約数の個数: 104

約数和(自身を含む): 1513696800

約数和(自身を除く): 866024992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 343, 392, 448, 461, 512, 686, 784, 896, 922, 1024, 1372, 1568, 1792, 1844, 2048, 2744, 3136, 3227, 3584, 3688, 4096, 5488, 6272, 6454, 7168, 7376, 10976, 12544, 12908, 14336, 14752, 21952, 22589, 25088, 25816, 28672, 29504, 43904, 45178, 50176, 51632, 59008, 87808, 90356, 100352, 103264, 118016, 158123, 175616, 180712, 200704, 206528, 236032, 316246, 351232, 361424, 413056, 472064, 632492, 702464, 722848, 826112, 944128, 1264984, 1404928, 1445696, 1652224, 1888256, 2529968, 2891392, 3304448, 5059936, 5782784, 6608896, 10119872, 11565568, 13217792, 20239744, 23131136, 40479488, 46262272, 80958976, 92524544, 161917952, 323835904, 647671808]

約数ペア:

[(1, 647671808), (2, 323835904), (4, 161917952), (7, 92524544), (8, 80958976), (14, 46262272), (16, 40479488), (28, 23131136), (32, 20239744), (49, 13217792), (56, 11565568), (64, 10119872), (98, 6608896), (112, 5782784), (128, 5059936), (196, 3304448), (224, 2891392), (256, 2529968), (343, 1888256), (392, 1652224), (448, 1445696), (461, 1404928), (512, 1264984), (686, 944128), (784, 826112), (896, 722848), (922, 702464), (1024, 632492), (1372, 472064), (1568, 413056), (1792, 361424), (1844, 351232), (2048, 316246), (2744, 236032), (3136, 206528), (3227, 200704), (3584, 180712), (3688, 175616), (4096, 158123), (5488, 118016), (6272, 103264), (6454, 100352), (7168, 90356), (7376, 87808), (10976, 59008), (12544, 51632), (12908, 50176), (14336, 45178), (14752, 43904), (21952, 29504), (22589, 28672), (25088, 25816)]