31626380

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 69854400

約数和(自身を除く): 38228020

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 197, 230, 349, 394, 460, 698, 788, 985, 1396, 1745, 1970, 3490, 3940, 4531, 6980, 8027, 9062, 16054, 18124, 22655, 32108, 40135, 45310, 68753, 80270, 90620, 137506, 160540, 275012, 343765, 687530, 1375060, 1581319, 3162638, 6325276, 7906595, 15813190, 31626380]

約数ペア:

[(1, 31626380), (2, 15813190), (4, 7906595), (5, 6325276), (10, 3162638), (20, 1581319), (23, 1375060), (46, 687530), (92, 343765), (115, 275012), (197, 160540), (230, 137506), (349, 90620), (394, 80270), (460, 68753), (698, 45310), (788, 40135), (985, 32108), (1396, 22655), (1745, 18124), (1970, 16054), (3490, 9062), (3940, 8027), (4531, 6980)]