128698340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{279779}}^1$

素因数の和:279811

約数の個数: 24

約数和(自身を含む): 282018240

約数和(自身を除く): 153319900

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 279779, 559558, 1119116, 1398895, 2797790, 5595580, 6434917, 12869834, 25739668, 32174585, 64349170, 128698340]

約数ペア:

[(1, 128698340), (2, 64349170), (4, 32174585), (5, 25739668), (10, 12869834), (20, 6434917), (23, 5595580), (46, 2797790), (92, 1398895), (115, 1119116), (230, 559558), (460, 279779)]