721000490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{997}}^1\times {\mathrm{10331}}^1$

素因数の和:11342

約数の個数: 32

約数和(自身を含む): 1484832384

約数和(自身を除く): 763831894

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 997, 1994, 4985, 6979, 9970, 10331, 13958, 20662, 34895, 51655, 69790, 72317, 103310, 144634, 361585, 723170, 10300007, 20600014, 51500035, 72100049, 103000070, 144200098, 360500245, 721000490]

約数ペア:

[(1, 721000490), (2, 360500245), (5, 144200098), (7, 103000070), (10, 72100049), (14, 51500035), (35, 20600014), (70, 10300007), (997, 723170), (1994, 361585), (4985, 144634), (6979, 103310), (9970, 72317), (10331, 69790), (13958, 51655), (20662, 34895)]