661423616

素因数分解:

$2^9\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1031}}^1$

素因数の和:1235

約数の個数: 80

約数和(自身を含む): 1520259840

約数和(自身を除く): 858836224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 179, 224, 256, 358, 448, 512, 716, 896, 1031, 1253, 1432, 1792, 2062, 2506, 2864, 3584, 4124, 5012, 5728, 7217, 8248, 10024, 11456, 14434, 16496, 20048, 22912, 28868, 32992, 40096, 45824, 57736, 65984, 80192, 91648, 115472, 131968, 160384, 184549, 230944, 263936, 320768, 369098, 461888, 527872, 641536, 738196, 923776, 1291843, 1476392, 1847552, 2583686, 2952784, 3695104, 5167372, 5905568, 10334744, 11811136, 20669488, 23622272, 41338976, 47244544, 82677952, 94489088, 165355904, 330711808, 661423616]

約数ペア:

[(1, 661423616), (2, 330711808), (4, 165355904), (7, 94489088), (8, 82677952), (14, 47244544), (16, 41338976), (28, 23622272), (32, 20669488), (56, 11811136), (64, 10334744), (112, 5905568), (128, 5167372), (179, 3695104), (224, 2952784), (256, 2583686), (358, 1847552), (448, 1476392), (512, 1291843), (716, 923776), (896, 738196), (1031, 641536), (1253, 527872), (1432, 461888), (1792, 369098), (2062, 320768), (2506, 263936), (2864, 230944), (3584, 184549), (4124, 160384), (5012, 131968), (5728, 115472), (7217, 91648), (8248, 80192), (10024, 65984), (11456, 57736), (14434, 45824), (16496, 40096), (20048, 32992), (22912, 28868)]