15705140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71387}}^1$

素因数の和:71407

約数の個数: 24

約数和(自身を含む): 35979552

約数和(自身を除く): 20274412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 71387, 142774, 285548, 356935, 713870, 785257, 1427740, 1570514, 3141028, 3926285, 7852570, 15705140]

約数ペア:

[(1, 15705140), (2, 7852570), (4, 3926285), (5, 3141028), (10, 1570514), (11, 1427740), (20, 785257), (22, 713870), (44, 356935), (55, 285548), (110, 142774), (220, 71387)]