1728380

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{971}}^1$

素因数の和:1069

約数の個数: 24

約数和(自身を含む): 3674160

約数和(自身を除く): 1945780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 971, 1780, 1942, 3884, 4855, 9710, 19420, 86419, 172838, 345676, 432095, 864190, 1728380]

約数ペア:

[(1, 1728380), (2, 864190), (4, 432095), (5, 345676), (10, 172838), (20, 86419), (89, 19420), (178, 9710), (356, 4855), (445, 3884), (890, 1942), (971, 1780)]