688240881

素因数分解:

$3^6\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:497

約数の個数: 56

約数和(自身を含む): 1076561280

約数和(自身を除く): 388320399

約数列:

[1, 3, 9, 27, 47, 53, 81, 141, 159, 243, 379, 423, 477, 729, 1137, 1269, 1431, 2491, 3411, 3807, 4293, 7473, 10233, 11421, 12879, 17813, 20087, 22419, 30699, 34263, 38637, 53439, 60261, 67257, 92097, 160317, 180783, 201771, 276291, 480951, 542349, 605313, 944089, 1442853, 1627047, 1815939, 2832267, 4328559, 4881141, 8496801, 12985677, 14643423, 25490403, 76471209, 229413627, 688240881]

約数ペア:

[(1, 688240881), (3, 229413627), (9, 76471209), (27, 25490403), (47, 14643423), (53, 12985677), (81, 8496801), (141, 4881141), (159, 4328559), (243, 2832267), (379, 1815939), (423, 1627047), (477, 1442853), (729, 944089), (1137, 605313), (1269, 542349), (1431, 480951), (2491, 276291), (3411, 201771), (3807, 180783), (4293, 160317), (7473, 92097), (10233, 67257), (11421, 60261), (12879, 53439), (17813, 38637), (20087, 34263), (22419, 30699)]