8539220

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1019}}^1$

素因数の和:1447

約数の個数: 24

約数和(自身を含む): 17992800

約数和(自身を除く): 9453580

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1019, 1676, 2038, 2095, 4076, 4190, 5095, 8380, 10190, 20380, 426961, 853922, 1707844, 2134805, 4269610, 8539220]

約数ペア:

[(1, 8539220), (2, 4269610), (4, 2134805), (5, 1707844), (10, 853922), (20, 426961), (419, 20380), (838, 10190), (1019, 8380), (1676, 5095), (2038, 4190), (2095, 4076)]