285220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1097}}^1$

素因数の和:1119

約数の個数: 24

約数和(自身を含む): 645624

約数和(自身を除く): 360404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1097, 2194, 4388, 5485, 10970, 14261, 21940, 28522, 57044, 71305, 142610, 285220]

約数ペア:

[(1, 285220), (2, 142610), (4, 71305), (5, 57044), (10, 28522), (13, 21940), (20, 14261), (26, 10970), (52, 5485), (65, 4388), (130, 2194), (260, 1097)]