20881270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1087}}^1$

素因数の和:1224

約数の個数: 32

約数和(自身を含む): 40186368

約数和(自身を除く): 19305098

約数列:

[1, 2, 5, 10, 17, 34, 85, 113, 170, 226, 565, 1087, 1130, 1921, 2174, 3842, 5435, 9605, 10870, 18479, 19210, 36958, 92395, 122831, 184790, 245662, 614155, 1228310, 2088127, 4176254, 10440635, 20881270]

約数ペア:

[(1, 20881270), (2, 10440635), (5, 4176254), (10, 2088127), (17, 1228310), (34, 614155), (85, 245662), (113, 184790), (170, 122831), (226, 92395), (565, 36958), (1087, 19210), (1130, 18479), (1921, 10870), (2174, 9605), (3842, 5435)]