15931940

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4003}}^1$

素因数の和:4211

約数の個数: 24

約数和(自身を含む): 33633600

約数和(自身を除く): 17701660

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4003, 8006, 16012, 20015, 40030, 80060, 796597, 1593194, 3186388, 3982985, 7965970, 15931940]

約数ペア:

[(1, 15931940), (2, 7965970), (4, 3982985), (5, 3186388), (10, 1593194), (20, 796597), (199, 80060), (398, 40030), (796, 20015), (995, 16012), (1990, 8006), (3980, 4003)]