256475392

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1013}}^1$

素因数の和:1095

約数の個数: 72

約数和(自身を含む): 547170624

約数和(自身を除く): 290695232

約数列:

[1, 2, 4, 8, 16, 23, 32, 43, 46, 64, 86, 92, 128, 172, 184, 256, 344, 368, 688, 736, 989, 1013, 1376, 1472, 1978, 2026, 2752, 2944, 3956, 4052, 5504, 5888, 7912, 8104, 11008, 15824, 16208, 23299, 31648, 32416, 43559, 46598, 63296, 64832, 87118, 93196, 126592, 129664, 174236, 186392, 253184, 259328, 348472, 372784, 696944, 745568, 1001857, 1393888, 1491136, 2003714, 2787776, 2982272, 4007428, 5575552, 5964544, 8014856, 11151104, 16029712, 32059424, 64118848, 128237696, 256475392]

約数ペア:

[(1, 256475392), (2, 128237696), (4, 64118848), (8, 32059424), (16, 16029712), (23, 11151104), (32, 8014856), (43, 5964544), (46, 5575552), (64, 4007428), (86, 2982272), (92, 2787776), (128, 2003714), (172, 1491136), (184, 1393888), (256, 1001857), (344, 745568), (368, 696944), (688, 372784), (736, 348472), (989, 259328), (1013, 253184), (1376, 186392), (1472, 174236), (1978, 129664), (2026, 126592), (2752, 93196), (2944, 87118), (3956, 64832), (4052, 63296), (5504, 46598), (5888, 43559), (7912, 32416), (8104, 31648), (11008, 23299), (15824, 16208)]