204613120

素因数分解:

$2^9\times 5^1\times {\mathrm{257}}^1\times {\mathrm{311}}^1$

素因数の和:591

約数の個数: 80

約数和(自身を含む): 494084448

約数和(自身を除く): 289471328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 257, 311, 320, 512, 514, 622, 640, 1028, 1244, 1280, 1285, 1555, 2056, 2488, 2560, 2570, 3110, 4112, 4976, 5140, 6220, 8224, 9952, 10280, 12440, 16448, 19904, 20560, 24880, 32896, 39808, 41120, 49760, 65792, 79616, 79927, 82240, 99520, 131584, 159232, 159854, 164480, 199040, 319708, 328960, 398080, 399635, 639416, 657920, 796160, 799270, 1278832, 1598540, 2557664, 3197080, 5115328, 6394160, 10230656, 12788320, 20461312, 25576640, 40922624, 51153280, 102306560, 204613120]

約数ペア:

[(1, 204613120), (2, 102306560), (4, 51153280), (5, 40922624), (8, 25576640), (10, 20461312), (16, 12788320), (20, 10230656), (32, 6394160), (40, 5115328), (64, 3197080), (80, 2557664), (128, 1598540), (160, 1278832), (256, 799270), (257, 796160), (311, 657920), (320, 639416), (512, 399635), (514, 398080), (622, 328960), (640, 319708), (1028, 199040), (1244, 164480), (1280, 159854), (1285, 159232), (1555, 131584), (2056, 99520), (2488, 82240), (2560, 79927), (2570, 79616), (3110, 65792), (4112, 49760), (4976, 41120), (5140, 39808), (6220, 32896), (8224, 24880), (9952, 20560), (10280, 19904), (12440, 16448)]