2051228240

素因数分解:

$2^4\times 5^1\times {\mathrm{25640353}}^1$

素因数の和:25640366

約数の個数: 20

約数和(自身を含む): 4769105844

約数和(自身を除く): 2717877604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25640353, 51280706, 102561412, 128201765, 205122824, 256403530, 410245648, 512807060, 1025614120, 2051228240]

約数ペア:

[(1, 2051228240), (2, 1025614120), (4, 512807060), (5, 410245648), (8, 256403530), (10, 205122824), (16, 128201765), (20, 102561412), (40, 51280706), (80, 25640353)]