81603470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20249}}^1$

素因数の和:20300

約数の個数: 32

約数和(自身を含む): 163296000

約数和(自身を除く): 81692530

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 20249, 40498, 101245, 202490, 263237, 526474, 627719, 1255438, 1316185, 2632370, 3138595, 6277190, 8160347, 16320694, 40801735, 81603470]

約数ペア:

[(1, 81603470), (2, 40801735), (5, 16320694), (10, 8160347), (13, 6277190), (26, 3138595), (31, 2632370), (62, 1316185), (65, 1255438), (130, 627719), (155, 526474), (310, 263237), (403, 202490), (806, 101245), (2015, 40498), (4030, 20249)]