81314530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{19979}}^1$

素因数の和:20034

約数の個数: 32

約数和(自身を含む): 163995840

約数和(自身を除く): 82681310

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 19979, 39958, 99895, 199790, 219769, 439538, 739223, 1098845, 1478446, 2197690, 3696115, 7392230, 8131453, 16262906, 40657265, 81314530]

約数ペア:

[(1, 81314530), (2, 40657265), (5, 16262906), (10, 8131453), (11, 7392230), (22, 3696115), (37, 2197690), (55, 1478446), (74, 1098845), (110, 739223), (185, 439538), (370, 219769), (407, 199790), (814, 99895), (2035, 39958), (4070, 19979)]