47220980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{21661}}^1$

素因数の和:21779

約数の個数: 24

約数和(自身を含む): 100078440

約数和(自身を除く): 52857460

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 21661, 43322, 86644, 108305, 216610, 433220, 2361049, 4722098, 9444196, 11805245, 23610490, 47220980]

約数ペア:

[(1, 47220980), (2, 23610490), (4, 11805245), (5, 9444196), (10, 4722098), (20, 2361049), (109, 433220), (218, 216610), (436, 108305), (545, 86644), (1090, 43322), (2180, 21661)]