680140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1097}}^1$

素因数の和:1137

約数の個数: 24

約数和(自身を含む): 1475712

約数和(自身を除く): 795572

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1097, 2194, 4388, 5485, 10970, 21940, 34007, 68014, 136028, 170035, 340070, 680140]

約数ペア:

[(1, 680140), (2, 340070), (4, 170035), (5, 136028), (10, 68014), (20, 34007), (31, 21940), (62, 10970), (124, 5485), (155, 4388), (310, 2194), (620, 1097)]