17800970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3947}}^1$

素因数の和:4006

約数の個数: 32

約数和(自身を含む): 35816256

約数和(自身を除く): 18015286

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 3947, 4510, 7894, 19735, 39470, 43417, 86834, 161827, 217085, 323654, 434170, 809135, 1618270, 1780097, 3560194, 8900485, 17800970]

約数ペア:

[(1, 17800970), (2, 8900485), (5, 3560194), (10, 1780097), (11, 1618270), (22, 809135), (41, 434170), (55, 323654), (82, 217085), (110, 161827), (205, 86834), (410, 43417), (451, 39470), (902, 19735), (2255, 7894), (3947, 4510)]