20785810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3529}}^1$

素因数の和:3586

約数の個数: 32

約数和(自身を含む): 40665600

約数和(自身を除く): 19879790

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 3529, 5890, 7058, 17645, 35290, 67051, 109399, 134102, 218798, 335255, 546995, 670510, 1093990, 2078581, 4157162, 10392905, 20785810]

約数ペア:

[(1, 20785810), (2, 10392905), (5, 4157162), (10, 2078581), (19, 1093990), (31, 670510), (38, 546995), (62, 335255), (95, 218798), (155, 134102), (190, 109399), (310, 67051), (589, 35290), (1178, 17645), (2945, 7058), (3529, 5890)]