20512781275

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{11311}}^1$

素因数の和:11612

約数の個数: 48

約数和(自身を含む): 29871643648

約数和(自身を除く): 9358862373

約数列:

[1, 5, 7, 25, 35, 43, 175, 215, 241, 301, 1075, 1205, 1505, 1687, 6025, 7525, 8435, 10363, 11311, 42175, 51815, 56555, 72541, 79177, 259075, 282775, 362705, 395885, 486373, 1813525, 1979425, 2431865, 2725951, 3404611, 12159325, 13629755, 17023055, 19081657, 68148775, 85115275, 95408285, 117215893, 477041425, 586079465, 820511251, 2930397325, 4102556255, 20512781275]

約数ペア:

[(1, 20512781275), (5, 4102556255), (7, 2930397325), (25, 820511251), (35, 586079465), (43, 477041425), (175, 117215893), (215, 95408285), (241, 85115275), (301, 68148775), (1075, 19081657), (1205, 17023055), (1505, 13629755), (1687, 12159325), (6025, 3404611), (7525, 2725951), (8435, 2431865), (10363, 1979425), (11311, 1813525), (42175, 486373), (51815, 395885), (56555, 362705), (72541, 282775), (79177, 259075)]