409420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1861}}^1$

素因数の和:1881

約数の個数: 24

約数和(自身を含む): 938448

約数和(自身を除く): 529028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1861, 3722, 7444, 9305, 18610, 20471, 37220, 40942, 81884, 102355, 204710, 409420]

約数ペア:

[(1, 409420), (2, 204710), (4, 102355), (5, 81884), (10, 40942), (11, 37220), (20, 20471), (22, 18610), (44, 9305), (55, 7444), (110, 3722), (220, 1861)]