40894220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49871}}^1$

素因数の和:49921

約数の個数: 24

約数和(自身を含む): 87974208

約数和(自身を除く): 47079988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 49871, 99742, 199484, 249355, 498710, 997420, 2044711, 4089422, 8178844, 10223555, 20447110, 40894220]

約数ペア:

[(1, 40894220), (2, 20447110), (4, 10223555), (5, 8178844), (10, 4089422), (20, 2044711), (41, 997420), (82, 498710), (164, 249355), (205, 199484), (410, 99742), (820, 49871)]