17798920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10853}}^1$

素因数の和:10905

約数の個数: 32

約数和(自身を含む): 41028120

約数和(自身を除く): 23229200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 10853, 21706, 43412, 54265, 86824, 108530, 217060, 434120, 444973, 889946, 1779892, 2224865, 3559784, 4449730, 8899460, 17798920]

約数ペア:

[(1, 17798920), (2, 8899460), (4, 4449730), (5, 3559784), (8, 2224865), (10, 1779892), (20, 889946), (40, 444973), (41, 434120), (82, 217060), (164, 108530), (205, 86824), (328, 54265), (410, 43412), (820, 21706), (1640, 10853)]