578049220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{20959}}^1$

素因数の和:21172

約数の個数: 48

約数和(自身を含む): 1394426880

約数和(自身を除く): 816377660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3940, 5516, 6895, 13790, 20959, 27580, 41918, 83836, 104795, 146713, 209590, 293426, 419180, 586852, 733565, 1467130, 2934260, 4128923, 8257846, 16515692, 20644615, 28902461, 41289230, 57804922, 82578460, 115609844, 144512305, 289024610, 578049220]

約数ペア:

[(1, 578049220), (2, 289024610), (4, 144512305), (5, 115609844), (7, 82578460), (10, 57804922), (14, 41289230), (20, 28902461), (28, 20644615), (35, 16515692), (70, 8257846), (140, 4128923), (197, 2934260), (394, 1467130), (788, 733565), (985, 586852), (1379, 419180), (1970, 293426), (2758, 209590), (3940, 146713), (5516, 104795), (6895, 83836), (13790, 41918), (20959, 27580)]