205919630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{457}}^1$

素因数の和:669

約数の個数: 64

約数和(自身を含む): 437657472

約数和(自身を除く): 231737842

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 157, 205, 287, 314, 410, 457, 574, 785, 914, 1099, 1435, 1570, 2198, 2285, 2870, 3199, 4570, 5495, 6398, 6437, 10990, 12874, 15995, 18737, 31990, 32185, 37474, 45059, 64370, 71749, 90118, 93685, 131159, 143498, 187370, 225295, 262318, 358745, 450590, 502243, 655795, 717490, 1004486, 1311590, 2511215, 2941709, 5022430, 5883418, 14708545, 20591963, 29417090, 41183926, 102959815, 205919630]

約数ペア:

[(1, 205919630), (2, 102959815), (5, 41183926), (7, 29417090), (10, 20591963), (14, 14708545), (35, 5883418), (41, 5022430), (70, 2941709), (82, 2511215), (157, 1311590), (205, 1004486), (287, 717490), (314, 655795), (410, 502243), (457, 450590), (574, 358745), (785, 262318), (914, 225295), (1099, 187370), (1435, 143498), (1570, 131159), (2198, 93685), (2285, 90118), (2870, 71749), (3199, 64370), (4570, 45059), (5495, 37474), (6398, 32185), (6437, 31990), (10990, 18737), (12874, 15995)]