25638320

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:342

約数の個数: 80

約数和(自身を含む): 63344160

約数和(自身を除く): 37705840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 43, 58, 80, 86, 116, 145, 172, 215, 232, 257, 290, 344, 430, 464, 514, 580, 688, 860, 1028, 1160, 1247, 1285, 1720, 2056, 2320, 2494, 2570, 3440, 4112, 4988, 5140, 6235, 7453, 9976, 10280, 11051, 12470, 14906, 19952, 20560, 22102, 24940, 29812, 37265, 44204, 49880, 55255, 59624, 74530, 88408, 99760, 110510, 119248, 149060, 176816, 221020, 298120, 320479, 442040, 596240, 640958, 884080, 1281916, 1602395, 2563832, 3204790, 5127664, 6409580, 12819160, 25638320]

約数ペア:

[(1, 25638320), (2, 12819160), (4, 6409580), (5, 5127664), (8, 3204790), (10, 2563832), (16, 1602395), (20, 1281916), (29, 884080), (40, 640958), (43, 596240), (58, 442040), (80, 320479), (86, 298120), (116, 221020), (145, 176816), (172, 149060), (215, 119248), (232, 110510), (257, 99760), (290, 88408), (344, 74530), (430, 59624), (464, 55255), (514, 49880), (580, 44204), (688, 37265), (860, 29812), (1028, 24940), (1160, 22102), (1247, 20560), (1285, 19952), (1720, 14906), (2056, 12470), (2320, 11051), (2494, 10280), (2570, 9976), (3440, 7453), (4112, 6235), (4988, 5140)]