645800519

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{1201}}^1$

素因数の和:1551

約数の個数: 32

約数和(自身を含む): 840053760

約数和(自身を除く): 194253241

約数列:

[1, 7, 13, 19, 91, 133, 247, 311, 1201, 1729, 2177, 4043, 5909, 8407, 15613, 22819, 28301, 41363, 76817, 109291, 159733, 296647, 373511, 537719, 2076529, 2614577, 4855643, 7096709, 33989501, 49676963, 92257217, 645800519]

約数ペア:

[(1, 645800519), (7, 92257217), (13, 49676963), (19, 33989501), (91, 7096709), (133, 4855643), (247, 2614577), (311, 2076529), (1201, 537719), (1729, 373511), (2177, 296647), (4043, 159733), (5909, 109291), (8407, 76817), (15613, 41363), (22819, 28301)]