1761348440

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{403979}}^1$

素因数の和:404099

約数の個数: 32

約数和(自身を含む): 3999402000

約数和(自身を除く): 2238053560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 403979, 807958, 1615916, 2019895, 3231832, 4039790, 8079580, 16159160, 44033711, 88067422, 176134844, 220168555, 352269688, 440337110, 880674220, 1761348440]

約数ペア:

[(1, 1761348440), (2, 880674220), (4, 440337110), (5, 352269688), (8, 220168555), (10, 176134844), (20, 88067422), (40, 44033711), (109, 16159160), (218, 8079580), (436, 4039790), (545, 3231832), (872, 2019895), (1090, 1615916), (2180, 807958), (4360, 403979)]