19910560

素因数分解:

$2^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1163}}^1$

素因数の和:1285

約数の個数: 48

約数和(自身を含む): 47519136

約数和(自身を除く): 27608576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 107, 160, 214, 428, 535, 856, 1070, 1163, 1712, 2140, 2326, 3424, 4280, 4652, 5815, 8560, 9304, 11630, 17120, 18608, 23260, 37216, 46520, 93040, 124441, 186080, 248882, 497764, 622205, 995528, 1244410, 1991056, 2488820, 3982112, 4977640, 9955280, 19910560]

約数ペア:

[(1, 19910560), (2, 9955280), (4, 4977640), (5, 3982112), (8, 2488820), (10, 1991056), (16, 1244410), (20, 995528), (32, 622205), (40, 497764), (80, 248882), (107, 186080), (160, 124441), (214, 93040), (428, 46520), (535, 37216), (856, 23260), (1070, 18608), (1163, 17120), (1712, 11630), (2140, 9304), (2326, 8560), (3424, 5815), (4280, 4652)]