20761529968

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{517589}}^1$

素因数の和:517729

約数の個数: 40

約数和(自身を含む): 42359565600

約数和(自身を除く): 21598035632

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 109, 184, 218, 368, 436, 872, 1744, 2507, 5014, 10028, 20056, 40112, 517589, 1035178, 2070356, 4140712, 8281424, 11904547, 23809094, 47618188, 56417201, 95236376, 112834402, 190472752, 225668804, 451337608, 902675216, 1297595623, 2595191246, 5190382492, 10380764984, 20761529968]

約数ペア:

[(1, 20761529968), (2, 10380764984), (4, 5190382492), (8, 2595191246), (16, 1297595623), (23, 902675216), (46, 451337608), (92, 225668804), (109, 190472752), (184, 112834402), (218, 95236376), (368, 56417201), (436, 47618188), (872, 23809094), (1744, 11904547), (2507, 8281424), (5014, 4140712), (10028, 2070356), (20056, 1035178), (40112, 517589)]