20189709865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{48239}}^1$

素因数の和:48441

約数の個数: 32

約数和(自身を含む): 26841507840

約数和(自身を除く): 6651797975

約数列:

[1, 5, 13, 47, 65, 137, 235, 611, 685, 1781, 3055, 6439, 8905, 32195, 48239, 83707, 241195, 418535, 627107, 2267233, 3135535, 6608743, 11336165, 29474029, 33043715, 85913659, 147370145, 310610921, 429568295, 1553054605, 4037941973, 20189709865]

約数ペア:

[(1, 20189709865), (5, 4037941973), (13, 1553054605), (47, 429568295), (65, 310610921), (137, 147370145), (235, 85913659), (611, 33043715), (685, 29474029), (1781, 11336165), (3055, 6608743), (6439, 3135535), (8905, 2267233), (32195, 627107), (48239, 418535), (83707, 241195)]