20788570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4021}}^1$

素因数の和:4086

約数の個数: 32

約数和(自身を含む): 41700096

約数和(自身を除く): 20911526

約数列:

[1, 2, 5, 10, 11, 22, 47, 55, 94, 110, 235, 470, 517, 1034, 2585, 4021, 5170, 8042, 20105, 40210, 44231, 88462, 188987, 221155, 377974, 442310, 944935, 1889870, 2078857, 4157714, 10394285, 20788570]

約数ペア:

[(1, 20788570), (2, 10394285), (5, 4157714), (10, 2078857), (11, 1889870), (22, 944935), (47, 442310), (55, 377974), (94, 221155), (110, 188987), (235, 88462), (470, 44231), (517, 40210), (1034, 20105), (2585, 8042), (4021, 5170)]