80813180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{15601}}^1$

素因数の和:15654

約数の個数: 48

約数和(自身を含む): 199206336

約数和(自身を除く): 118393156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 15601, 31202, 62404, 78005, 109207, 156010, 218414, 312020, 436828, 546035, 577237, 1092070, 1154474, 2184140, 2308948, 2886185, 4040659, 5772370, 8081318, 11544740, 16162636, 20203295, 40406590, 80813180]

約数ペア:

[(1, 80813180), (2, 40406590), (4, 20203295), (5, 16162636), (7, 11544740), (10, 8081318), (14, 5772370), (20, 4040659), (28, 2886185), (35, 2308948), (37, 2184140), (70, 1154474), (74, 1092070), (140, 577237), (148, 546035), (185, 436828), (259, 312020), (370, 218414), (518, 156010), (740, 109207), (1036, 78005), (1295, 62404), (2590, 31202), (5180, 15601)]