19928120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21661}}^1$

素因数の和:21695

約数の個数: 32

約数和(自身を含む): 46789920

約数和(自身を除く): 26861800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21661, 43322, 86644, 108305, 173288, 216610, 433220, 498203, 866440, 996406, 1992812, 2491015, 3985624, 4982030, 9964060, 19928120]

約数ペア:

[(1, 19928120), (2, 9964060), (4, 4982030), (5, 3985624), (8, 2491015), (10, 1992812), (20, 996406), (23, 866440), (40, 498203), (46, 433220), (92, 216610), (115, 173288), (184, 108305), (230, 86644), (460, 43322), (920, 21661)]