66918656

素因数分解:

$2^8\times 7^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:479

約数の個数: 72

約数和(自身を含む): 154526400

約数和(自身を除く): 87607744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 107, 112, 128, 214, 224, 256, 349, 428, 448, 698, 749, 856, 896, 1396, 1498, 1712, 1792, 2443, 2792, 2996, 3424, 4886, 5584, 5992, 6848, 9772, 11168, 11984, 13696, 19544, 22336, 23968, 27392, 37343, 39088, 44672, 47936, 74686, 78176, 89344, 95872, 149372, 156352, 191744, 261401, 298744, 312704, 522802, 597488, 625408, 1045604, 1194976, 2091208, 2389952, 4182416, 4779904, 8364832, 9559808, 16729664, 33459328, 66918656]

約数ペア:

[(1, 66918656), (2, 33459328), (4, 16729664), (7, 9559808), (8, 8364832), (14, 4779904), (16, 4182416), (28, 2389952), (32, 2091208), (56, 1194976), (64, 1045604), (107, 625408), (112, 597488), (128, 522802), (214, 312704), (224, 298744), (256, 261401), (349, 191744), (428, 156352), (448, 149372), (698, 95872), (749, 89344), (856, 78176), (896, 74686), (1396, 47936), (1498, 44672), (1712, 39088), (1792, 37343), (2443, 27392), (2792, 23968), (2996, 22336), (3424, 19544), (4886, 13696), (5584, 11984), (5992, 11168), (6848, 9772)]