2140220

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{947}}^1$

素因数の和:1069

約数の個数: 24

約数和(自身を含む): 4539024

約数和(自身を除く): 2398804

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 947, 1130, 1894, 2260, 3788, 4735, 9470, 18940, 107011, 214022, 428044, 535055, 1070110, 2140220]

約数ペア:

[(1, 2140220), (2, 1070110), (4, 535055), (5, 428044), (10, 214022), (20, 107011), (113, 18940), (226, 9470), (452, 4735), (565, 3788), (947, 2260), (1130, 1894)]