18989650

素因数分解:

$2^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{3361}}^1$

素因数の和:3486

約数の個数: 24

約数和(自身を含む): 35643924

約数和(自身を除く): 16654274

約数列:

[1, 2, 5, 10, 25, 50, 113, 226, 565, 1130, 2825, 3361, 5650, 6722, 16805, 33610, 84025, 168050, 379793, 759586, 1898965, 3797930, 9494825, 18989650]

約数ペア:

[(1, 18989650), (2, 9494825), (5, 3797930), (10, 1898965), (25, 759586), (50, 379793), (113, 168050), (226, 84025), (565, 33610), (1130, 16805), (2825, 6722), (3361, 5650)]