20401552

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{55439}}^1$

素因数の和:55470

約数の個数: 20

約数和(自身を含む): 41247360

約数和(自身を除く): 20845808

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 55439, 110878, 221756, 443512, 887024, 1275097, 2550194, 5100388, 10200776, 20401552]

約数ペア:

[(1, 20401552), (2, 10200776), (4, 5100388), (8, 2550194), (16, 1275097), (23, 887024), (46, 443512), (92, 221756), (184, 110878), (368, 55439)]