64260820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{563}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 145918080

約数和(自身を除く): 81657260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 439, 563, 878, 1126, 1756, 2195, 2252, 2815, 4390, 5630, 5707, 7319, 8780, 11260, 11414, 14638, 22828, 28535, 29276, 36595, 57070, 73190, 114140, 146380, 247157, 494314, 988628, 1235785, 2471570, 3213041, 4943140, 6426082, 12852164, 16065205, 32130410, 64260820]

約数ペア:

[(1, 64260820), (2, 32130410), (4, 16065205), (5, 12852164), (10, 6426082), (13, 4943140), (20, 3213041), (26, 2471570), (52, 1235785), (65, 988628), (130, 494314), (260, 247157), (439, 146380), (563, 114140), (878, 73190), (1126, 57070), (1756, 36595), (2195, 29276), (2252, 28535), (2815, 22828), (4390, 14638), (5630, 11414), (5707, 11260), (7319, 8780)]