16868240

素因数分解:

$2^4\times 5^1\times {\mathrm{210853}}^1$

素因数の和:210866

約数の個数: 20

約数和(自身を含む): 39218844

約数和(自身を除く): 22350604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210853, 421706, 843412, 1054265, 1686824, 2108530, 3373648, 4217060, 8434120, 16868240]

約数ペア:

[(1, 16868240), (2, 8434120), (4, 4217060), (5, 3373648), (8, 2108530), (10, 1686824), (16, 1054265), (20, 843412), (40, 421706), (80, 210853)]