28388690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{631}}^1$

素因数の和:1058

約数の個数: 32

約数和(自身を含む): 55969920

約数和(自身を除く): 27581230

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 409, 631, 818, 1262, 2045, 3155, 4090, 4499, 6310, 6941, 8998, 13882, 22495, 34705, 44990, 69410, 258079, 516158, 1290395, 2580790, 2838869, 5677738, 14194345, 28388690]

約数ペア:

[(1, 28388690), (2, 14194345), (5, 5677738), (10, 2838869), (11, 2580790), (22, 1290395), (55, 516158), (110, 258079), (409, 69410), (631, 44990), (818, 34705), (1262, 22495), (2045, 13882), (3155, 8998), (4090, 6941), (4499, 6310)]