18922040

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1129}}^1$

素因数の和:1559

約数の個数: 32

約数和(自身を含む): 42714000

約数和(自身を除く): 23791960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1129, 1676, 2095, 2258, 3352, 4190, 4516, 5645, 8380, 9032, 11290, 16760, 22580, 45160, 473051, 946102, 1892204, 2365255, 3784408, 4730510, 9461020, 18922040]

約数ペア:

[(1, 18922040), (2, 9461020), (4, 4730510), (5, 3784408), (8, 2365255), (10, 1892204), (20, 946102), (40, 473051), (419, 45160), (838, 22580), (1129, 16760), (1676, 11290), (2095, 9032), (2258, 8380), (3352, 5645), (4190, 4516)]