639173888

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{647}}^1$

素因数の和:907

約数の個数: 72

約数和(自身を含む): 1358949312

約数和(自身を除く): 719775424

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 227, 256, 272, 454, 544, 647, 908, 1088, 1294, 1816, 2176, 2588, 3632, 3859, 4352, 5176, 7264, 7718, 10352, 10999, 14528, 15436, 20704, 21998, 29056, 30872, 41408, 43996, 58112, 61744, 82816, 87992, 123488, 146869, 165632, 175984, 246976, 293738, 351968, 493952, 587476, 703936, 987904, 1174952, 1407872, 2349904, 2496773, 2815744, 4699808, 4993546, 9399616, 9987092, 18799232, 19974184, 37598464, 39948368, 79896736, 159793472, 319586944, 639173888]

約数ペア:

[(1, 639173888), (2, 319586944), (4, 159793472), (8, 79896736), (16, 39948368), (17, 37598464), (32, 19974184), (34, 18799232), (64, 9987092), (68, 9399616), (128, 4993546), (136, 4699808), (227, 2815744), (256, 2496773), (272, 2349904), (454, 1407872), (544, 1174952), (647, 987904), (908, 703936), (1088, 587476), (1294, 493952), (1816, 351968), (2176, 293738), (2588, 246976), (3632, 175984), (3859, 165632), (4352, 146869), (5176, 123488), (7264, 87992), (7718, 82816), (10352, 61744), (10999, 58112), (14528, 43996), (15436, 41408), (20704, 30872), (21998, 29056)]