402022220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{490271}}^1$

素因数の和:490321

約数の個数: 24

約数和(自身を含む): 864839808

約数和(自身を除く): 462817588

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 490271, 980542, 1961084, 2451355, 4902710, 9805420, 20101111, 40202222, 80404444, 100505555, 201011110, 402022220]

約数ペア:

[(1, 402022220), (2, 201011110), (4, 100505555), (5, 80404444), (10, 40202222), (20, 20101111), (41, 9805420), (82, 4902710), (164, 2451355), (205, 1961084), (410, 980542), (820, 490271)]