31690760

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{10853}}^1$

素因数の和:10937

約数の個数: 32

約数和(自身を含む): 72287640

約数和(自身を除く): 40596880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 10853, 21706, 43412, 54265, 86824, 108530, 217060, 434120, 792269, 1584538, 3169076, 3961345, 6338152, 7922690, 15845380, 31690760]

約数ペア:

[(1, 31690760), (2, 15845380), (4, 7922690), (5, 6338152), (8, 3961345), (10, 3169076), (20, 1584538), (40, 792269), (73, 434120), (146, 217060), (292, 108530), (365, 86824), (584, 54265), (730, 43412), (1460, 21706), (2920, 10853)]