222220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 479808

約数和(自身を除く): 257588

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 271, 410, 542, 820, 1084, 1355, 2710, 5420, 11111, 22222, 44444, 55555, 111110, 222220]

約数ペア:

[(1, 222220), (2, 111110), (4, 55555), (5, 44444), (10, 22222), (20, 11111), (41, 5420), (82, 2710), (164, 1355), (205, 1084), (271, 820), (410, 542)]