4003805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2036

約数の個数: 16

約数和(自身を含む): 5343744

約数和(自身を除く): 1339939

約数列:

[1, 5, 13, 31, 65, 155, 403, 1987, 2015, 9935, 25831, 61597, 129155, 307985, 800761, 4003805]

約数ペア:

[(1, 4003805), (5, 800761), (13, 307985), (31, 129155), (65, 61597), (155, 25831), (403, 9935), (1987, 2015)]