128457808

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{1009}}^1$

素因数の和:1199

約数の個数: 40

約数和(自身を含む): 254863400

約数和(自身を除く): 126405592

約数列:

[1, 2, 4, 8, 16, 73, 109, 146, 218, 292, 436, 584, 872, 1009, 1168, 1744, 2018, 4036, 7957, 8072, 15914, 16144, 31828, 63656, 73657, 109981, 127312, 147314, 219962, 294628, 439924, 589256, 879848, 1178512, 1759696, 8028613, 16057226, 32114452, 64228904, 128457808]

約数ペア:

[(1, 128457808), (2, 64228904), (4, 32114452), (8, 16057226), (16, 8028613), (73, 1759696), (109, 1178512), (146, 879848), (218, 589256), (292, 439924), (436, 294628), (584, 219962), (872, 147314), (1009, 127312), (1168, 109981), (1744, 73657), (2018, 63656), (4036, 31828), (7957, 16144), (8072, 15914)]