20197802060

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{509}}^1\times {\mathrm{27179}}^1$

素因数の和:27770

約数の個数: 48

約数和(自身を含む): 43082474400

約数和(自身を除く): 22884672340

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 509, 730, 1018, 1460, 2036, 2545, 5090, 10180, 27179, 37157, 54358, 74314, 108716, 135895, 148628, 185785, 271790, 371570, 543580, 743140, 1984067, 3968134, 7936268, 9920335, 13834111, 19840670, 27668222, 39681340, 55336444, 69170555, 138341110, 276682220, 1009890103, 2019780206, 4039560412, 5049450515, 10098901030, 20197802060]

約数ペア:

[(1, 20197802060), (2, 10098901030), (4, 5049450515), (5, 4039560412), (10, 2019780206), (20, 1009890103), (73, 276682220), (146, 138341110), (292, 69170555), (365, 55336444), (509, 39681340), (730, 27668222), (1018, 19840670), (1460, 13834111), (2036, 9920335), (2545, 7936268), (5090, 3968134), (10180, 1984067), (27179, 743140), (37157, 543580), (54358, 371570), (74314, 271790), (108716, 185785), (135895, 148628)]